38071690 has 16 divisors (see below), whose sum is σ = 69469128. Its totient is φ = 15019776.

The previous prime is 38071681. The next prime is 38071699. The reversal of 38071690 is 9617083.

It is an interprime number because it is at equal distance from previous prime (38071681) and next prime (38071699).

It can be written as a sum of positive squares in 4 ways, for example, as 37736449 + 335241 = 6143^2 + 579^2 .

It is a super-2 number, since 2×38071690² = 2898907158912200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38071699) 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, 25347 + ... + 26806.

Almost surely, 2^38071690 is an apocalyptic number.

38071690 is a deficient number, since it is larger than the sum of its proper divisors (31397438).

38071690 is a wasteful number, since it uses less digits than its factorization.

38071690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52233.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 38071690 is about 6170.2260898609. The cubic root of 38071690 is about 336.4088289324.

The spelling of 38071690 in words is "thirty-eight million, seventy-one thousand, six hundred ninety".