402819125 has 16 divisors (see below), whose sum is σ = 524579328. Its totient is φ = 308242000.

The previous prime is 402819121. The next prime is 402819149. The reversal of 402819125 is 521918204.

It is not a de Polignac number, because 402819125 - 2² = 402819121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402819091 and 402819100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402819121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67181 + ... + 72930.

It is an arithmetic number, because the mean of its divisors is an integer number (32786208).

Almost surely, 2^402819125 is an apocalyptic number.

It is an amenable number.

402819125 is a deficient number, since it is larger than the sum of its proper divisors (121760203).

402819125 is a wasteful number, since it uses less digits than its factorization.

402819125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140149 (or 140139 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 402819125 is about 20070.3543815250. The cubic root of 402819125 is about 738.5332066375.

The spelling of 402819125 in words is "four hundred two million, eight hundred nineteen thousand, one hundred twenty-five".