402154432 has 14 divisors (see below), whose sum is σ = 798025328. Its totient is φ = 201077184.

The previous prime is 402154429. The next prime is 402154433. The reversal of 402154432 is 234451204.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 402154397 and 402154406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402154433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3141768 + ... + 3141895.

Almost surely, 2^402154432 is an apocalyptic number.

It is an amenable number.

402154432 is a deficient number, since it is larger than the sum of its proper divisors (395870896).

402154432 is an equidigital number, since it uses as much as digits as its factorization.

402154432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6283675 (or 6283665 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 402154432 is about 20053.7884700123. The cubic root of 402154432 is about 738.1267644068.

The spelling of 402154432 in words is "four hundred two million, one hundred fifty-four thousand, four hundred thirty-two".