1401012 has 18 divisors (see below), whose sum is σ = 3541538. Its totient is φ = 466992.

The previous prime is 1401007. The next prime is 1401017. The reversal of 1401012 is 2101041.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1401007) and next prime (1401017).

It can be written as a sum of positive squares in only one way, i.e., 933156 + 467856 = 966^2 + 684^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1400985 and 1401003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19423 + ... + 19494.

2^1401012 is an apocalyptic number.

1401012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1401012 is an abundant number, since it is smaller than the sum of its proper divisors (2140526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1401012 is a wasteful number, since it uses less digits than its factorization.

1401012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38927 (or 38922 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1401012 is about 1183.6435274186. The cubic root of 1401012 is about 111.8958427923.

Adding to 1401012 its reverse (2101041), we get a palindrome (3502053).

The spelling of 1401012 in words is "one million, four hundred one thousand, twelve".