38720826 has 12 divisors (see below), whose sum is σ = 83895162. Its totient is φ = 12906936.

The previous prime is 38720819. The next prime is 38720837. The reversal of 38720826 is 62802783.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 30305025 + 8415801 = 5505^2 + 2901^2 .

It is a super-2 number, since 2×38720826² = 2998604732244552, which contains 22 as substring.

It is a Curzon 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, 1075561 + ... + 1075596.

Almost surely, 2^38720826 is an apocalyptic number.

38720826 is an abundant number, since it is smaller than the sum of its proper divisors (45174336).

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

38720826 is a wasteful number, since it uses less digits than its factorization.

38720826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151165 (or 2151162 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 38720826 is about 6222.6060457014. The cubic root of 38720826 is about 338.3100279729.

The spelling of 38720826 in words is "thirty-eight million, seven hundred twenty thousand, eight hundred twenty-six".