409896628 has 6 divisors (see below), whose sum is σ = 717319106. Its totient is φ = 204948312.

The previous prime is 409896611. The next prime is 409896631. The reversal of 409896628 is 826698904.

It can be written as a sum of positive squares in only one way, i.e., 385808164 + 24088464 = 19642^2 + 4908^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51237075 + ... + 51237082.

Almost surely, 2^409896628 is an apocalyptic number.

It is an amenable number.

409896628 is a deficient number, since it is larger than the sum of its proper divisors (307422478).

409896628 is a wasteful number, since it uses less digits than its factorization.

409896628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102474161 (or 102474159 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 52.

The square root of 409896628 is about 20245.9039808056. The cubic root of 409896628 is about 742.8334442355.

The spelling of 409896628 in words is "four hundred nine million, eight hundred ninety-six thousand, six hundred twenty-eight".