402806152 has 32 divisors (see below), whose sum is σ = 863881920. Its totient is φ = 172486080.

The previous prime is 402806141. The next prime is 402806179. The reversal of 402806152 is 251608204.

It is a super-3 number, since 3×402806152³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 402806152.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88902 + ... + 93322.

It is an arithmetic number, because the mean of its divisors is an integer number (26996310).

Almost surely, 2^402806152 is an apocalyptic number.

It is an amenable number.

402806152 is an abundant number, since it is smaller than the sum of its proper divisors (461075768).

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

402806152 is a wasteful number, since it uses less digits than its factorization.

402806152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6061 (or 6057 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 402806152 is about 20070.0311908079. The cubic root of 402806152 is about 738.5252782700.

The spelling of 402806152 in words is "four hundred two million, eight hundred six thousand, one hundred fifty-two".