1011402456 has 16 divisors (see below), whose sum is σ = 2528506200. Its totient is φ = 337134144.

The previous prime is 1011402421. The next prime is 1011402467. The reversal of 1011402456 is 6542041101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 42141769 = 1011402456 / (1 + 0 + 1 + 1 + 4 + 0 + 2 + 4 + 5 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21070861 + ... + 21070908.

Almost surely, 2^1011402456 is an apocalyptic number.

It is an amenable number.

1011402456 is an abundant number, since it is smaller than the sum of its proper divisors (1517103744).

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

1011402456 is a wasteful number, since it uses less digits than its factorization.

1011402456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42141778 (or 42141774 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1011402456 is about 31802.5542370420. The cubic root of 1011402456 is about 1003.7864632667.

Adding to 1011402456 its reverse (6542041101), we get a palindrome (7553443557).

The spelling of 1011402456 in words is "one billion, eleven million, four hundred two thousand, four hundred fifty-six".