38402900 has 18 divisors (see below), whose sum is σ = 83334510. Its totient is φ = 15361120.

The previous prime is 38402879. The next prime is 38402941. The reversal of 38402900 is 920483.

It can be written as a sum of positive squares in 3 ways, for example, as 111556 + 38291344 = 334^2 + 6188^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 38402900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 191915 + ... + 192114.

It is an arithmetic number, because the mean of its divisors is an integer number (4629695).

Almost surely, 2^38402900 is an apocalyptic number.

It is an amenable number.

38402900 is an abundant number, since it is smaller than the sum of its proper divisors (44931610).

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

38402900 is a wasteful number, since it uses less digits than its factorization.

38402900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384043 (or 384036 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 38402900 is about 6197.0073422580. The cubic root of 38402900 is about 337.3815588053.

The spelling of 38402900 in words is "thirty-eight million, four hundred two thousand, nine hundred".