38965420 has 24 divisors (see below), whose sum is σ = 88122384. Its totient is φ = 14387136.

The previous prime is 38965393. The next prime is 38965469. The reversal of 38965420 is 2456983.

It is a self number, because there is not a number n which added to its sum of digits gives 38965420.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74674 + ... + 75193.

It is an arithmetic number, because the mean of its divisors is an integer number (3671766).

Almost surely, 2^38965420 is an apocalyptic number.

It is an amenable number.

38965420 is an abundant number, since it is smaller than the sum of its proper divisors (49156964).

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

38965420 is a wasteful number, since it uses less digits than its factorization.

38965420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149889 (or 149887 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 38965420 is about 6242.2287686370. The cubic root of 38965420 is about 339.0208855253.

It can be divided in two parts, 3896 and 5420, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 38965420 in words is "thirty-eight million, nine hundred sixty-five thousand, four hundred twenty".