38740464 has 160 divisors (see below), whose sum is σ = 132848640. Its totient is φ = 10568448.

The previous prime is 38740459. The next prime is 38740477. The reversal of 38740464 is 46404783.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69274 + ... + 69830.

It is an arithmetic number, because the mean of its divisors is an integer number (830304).

Almost surely, 2^38740464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38740464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66424320).

38740464 is an abundant number, since it is smaller than the sum of its proper divisors (94108176).

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

38740464 is a wasteful number, since it uses less digits than its factorization.

38740464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604 (or 592 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 38740464 is about 6224.1838019133. The cubic root of 38740464 is about 338.3672117520.

It can be divided in two parts, 38740 and 464, that added together give a square (39204 = 198²).

The spelling of 38740464 in words is "thirty-eight million, seven hundred forty thousand, four hundred sixty-four".