39290040 has 48 divisors (see below), whose sum is σ = 127693800. Its totient is φ = 10477248.

The previous prime is 39290011. The next prime is 39290063. The reversal of 39290040 is 4009293.

It is a junction number, because it is equal to n+sod(n) for n = 39289986 and 39290013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54210 + ... + 54929.

Almost surely, 2^39290040 is an apocalyptic number.

39290040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

39290040 is an abundant number, since it is smaller than the sum of its proper divisors (88403760).

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

39290040 is a wasteful number, since it uses less digits than its factorization.

39290040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109156 (or 109149 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 39290040 is about 6268.1767684072. The cubic root of 39290040 is about 339.9597414847.

The spelling of 39290040 in words is "thirty-nine million, two hundred ninety thousand, forty".