402604650 has 144 divisors (see below), whose sum is σ = 1290167424. Its totient is φ = 88007040.

The previous prime is 402604639. The next prime is 402604667. The reversal of 402604650 is 56406204.

It is a happy number.

402604650 is a `hidden beast` number, since 4 + 0 + 2 + 6 + 0 + 4 + 650 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 69672 + ... + 75228.

It is an arithmetic number, because the mean of its divisors is an integer number (8959496).

Almost surely, 2^402604650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402604650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (645083712).

402604650 is an abundant number, since it is smaller than the sum of its proper divisors (887562774).

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

402604650 is a wasteful number, since it uses less digits than its factorization.

402604650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5605 (or 5597 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 402604650 is about 20065.0105905778. The cubic root of 402604650 is about 738.4021097257.

The spelling of 402604650 in words is "four hundred two million, six hundred four thousand, six hundred fifty".