1043400402 has 48 divisors (see below), whose sum is σ = 2468400480. Its totient is φ = 315902400.

The previous prime is 1043400361. The next prime is 1043400419. The reversal of 1043400402 is 2040043401.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 380974 + ... + 383702.

It is an arithmetic number, because the mean of its divisors is an integer number (51425010).

Almost surely, 2^1043400402 is an apocalyptic number.

1043400402 is an abundant number, since it is smaller than the sum of its proper divisors (1425000078).

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

1043400402 is a wasteful number, since it uses less digits than its factorization.

1043400402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4679 (or 4676 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1043400402 is about 32301.7089640780. The cubic root of 1043400402 is about 1014.2624170559.

Adding to 1043400402 its reverse (2040043401), we get a palindrome (3083443803).

The spelling of 1043400402 in words is "one billion, forty-three million, four hundred thousand, four hundred two".