39304090 has 32 divisors (see below), whose sum is σ = 81212544. Its totient is φ = 13416000.

The previous prime is 39304081. The next prime is 39304093. The reversal of 39304090 is 9040393.

It is a super-2 number, since 2×39304090² = 3089622981456200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39304093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16452 + ... + 18688.

It is an arithmetic number, because the mean of its divisors is an integer number (2537892).

Almost surely, 2^39304090 is an apocalyptic number.

39304090 is an abundant number, since it is smaller than the sum of its proper divisors (41908454).

39304090 is a wasteful number, since it uses less digits than its factorization.

39304090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 39304090 is about 6269.2974088011. The cubic root of 39304090 is about 340.0002595154. Note that the first 3 decimals are identical.

The spelling of 39304090 in words is "thirty-nine million, three hundred four thousand, ninety".