1400025 has 24 divisors (see below), whose sum is σ = 2526624. Its totient is φ = 678400.

The previous prime is 1400023. The next prime is 1400029. The reversal of 1400025 is 5200041.

It is not a de Polignac number, because 1400025 - 2¹ = 1400023 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1400023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24 + ... + 1673.

It is an arithmetic number, because the mean of its divisors is an integer number (105276).

2^1400025 is an apocalyptic number.

1400025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1400025 is a deficient number, since it is larger than the sum of its proper divisors (1126599).

1400025 is a wasteful number, since it uses less digits than its factorization.

1400025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721 (or 1716 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 1400025 is about 1183.2265210009. The cubic root of 1400025 is about 111.8695600905.

Adding to 1400025 its reverse (5200041), we get a palindrome (6600066).

The spelling of 1400025 in words is "one million, four hundred thousand, twenty-five".