38490236 has 24 divisors (see below), whose sum is σ = 68683104. Its totient is φ = 18869760.

The previous prime is 38490223. The next prime is 38490239. The reversal of 38490236 is 63209483.

38490236 = 701² + 702² + ... + 771².

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 38490196 and 38490205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38490239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88676 + ... + 89108.

It is an arithmetic number, because the mean of its divisors is an integer number (2861796).

Almost surely, 2^38490236 is an apocalyptic number.

It is an amenable number.

38490236 is a deficient number, since it is larger than the sum of its proper divisors (30192868).

38490236 is a wasteful number, since it uses less digits than its factorization.

38490236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821 (or 819 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 38490236 is about 6204.0499675615. The cubic root of 38490236 is about 337.6371232471.

The spelling of 38490236 in words is "thirty-eight million, four hundred ninety thousand, two hundred thirty-six".