38491400 has 48 divisors (see below), whose sum is σ = 94765140. Its totient is φ = 14489600.

The previous prime is 38491379. The next prime is 38491421. The reversal of 38491400 is 419483.

It is an interprime number because it is at equal distance from previous prime (38491379) and next prime (38491421).

It can be written as a sum of positive squares in 6 ways, for example, as 10125124 + 28366276 = 3182^2 + 5326^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2261 + ... + 9060.

Almost surely, 2^38491400 is an apocalyptic number.

It is an amenable number.

38491400 is an abundant number, since it is smaller than the sum of its proper divisors (56273740).

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

38491400 is a wasteful number, since it uses less digits than its factorization.

38491400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11354 (or 11345 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 38491400 is about 6204.1437765416. The cubic root of 38491400 is about 337.6405267566.

The spelling of 38491400 in words is "thirty-eight million, four hundred ninety-one thousand, four hundred".