39413890 has 16 divisors (see below), whose sum is σ = 71844480. Its totient is φ = 15565680.

The previous prime is 39413887. The next prime is 39413893. The reversal of 39413890 is 9831493.

It is an interprime number because it is at equal distance from previous prime (39413887) and next prime (39413893).

It is not an unprimeable number, because it can be changed into a prime (39413893) 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, 24156 + ... + 25735.

It is an arithmetic number, because the mean of its divisors is an integer number (4490280).

Almost surely, 2^39413890 is an apocalyptic number.

39413890 is a deficient number, since it is larger than the sum of its proper divisors (32430590).

39413890 is a wasteful number, since it uses less digits than its factorization.

39413890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49977.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 39413890 is about 6278.0482635928. The cubic root of 39413890 is about 340.3165736592.

The spelling of 39413890 in words is "thirty-nine million, four hundred thirteen thousand, eight hundred ninety".