38814040 has 16 divisors (see below), whose sum is σ = 87331680. Its totient is φ = 15525600.

The previous prime is 38814029. The next prime is 38814047. The reversal of 38814040 is 4041883.

It is a super-2 number, since 2×38814040² = 3013059402243200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38814047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485136 + ... + 485215.

It is an arithmetic number, because the mean of its divisors is an integer number (5458230).

Almost surely, 2^38814040 is an apocalyptic number.

It is an amenable number.

38814040 is an abundant number, since it is smaller than the sum of its proper divisors (48517640).

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

38814040 is a wasteful number, since it uses less digits than its factorization.

38814040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970362 (or 970358 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 38814040 is about 6230.0914921051. The cubic root of 38814040 is about 338.5812856113.

It can be divided in two parts, 3881 and 4040, that added together give a square (7921 = 89²).

The spelling of 38814040 in words is "thirty-eight million, eight hundred fourteen thousand, forty".