39752290 has 16 divisors (see below), whose sum is σ = 75763512. Its totient is φ = 14965504.

The previous prime is 39752281. The next prime is 39752291. The reversal of 39752290 is 9225793.

It can be written as a sum of positive squares in 4 ways, for example, as 37687321 + 2064969 = 6139^2 + 1437^2 .

It is not an unprimeable number, because it can be changed into a prime (39752291) 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, 116749 + ... + 117088.

Almost surely, 2^39752290 is an apocalyptic number.

39752290 is a deficient number, since it is larger than the sum of its proper divisors (36011222).

39752290 is a wasteful number, since it uses less digits than its factorization.

39752290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233861.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 39752290 is about 6304.9417126568. The cubic root of 39752290 is about 341.2877634460.

The spelling of 39752290 in words is "thirty-nine million, seven hundred fifty-two thousand, two hundred ninety".