39413889 has 24 divisors (see below), whose sum is σ = 58280352. Its totient is φ = 25660800.

The previous prime is 39413887. The next prime is 39413893. The reversal of 39413889 is 98831493.

It is not a de Polignac number, because 39413889 - 2¹ = 39413887 is a prime.

It is a super-2 number, since 2×39413889² = 3106909292208642, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (39413887) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98089 + ... + 98489.

It is an arithmetic number, because the mean of its divisors is an integer number (2428348).

Almost surely, 2^39413889 is an apocalyptic number.

It is an amenable number.

39413889 is a deficient number, since it is larger than the sum of its proper divisors (18866463).

39413889 is a wasteful number, since it uses less digits than its factorization.

39413889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637 (or 634 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 39413889 is about 6278.0481839502. The cubic root of 39413889 is about 340.3165707811.

The spelling of 39413889 in words is "thirty-nine million, four hundred thirteen thousand, eight hundred eighty-nine".