38374840 has 64 divisors (see below), whose sum is σ = 100728000. Its totient is φ = 13152384.

The previous prime is 38374837. The next prime is 38374871. The reversal of 38374840 is 4847383.

It is a self number, because there is not a number n which added to its sum of digits gives 38374840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12322 + ... + 15118.

It is an arithmetic number, because the mean of its divisors is an integer number (1573875).

Almost surely, 2^38374840 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 38374840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50364000).

38374840 is an abundant number, since it is smaller than the sum of its proper divisors (62353160).

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

38374840 is a wasteful number, since it uses less digits than its factorization.

38374840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2829 (or 2811 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 38374840 is about 6194.7429325195. The cubic root of 38374840 is about 337.2993668074.

The spelling of 38374840 in words is "thirty-eight million, three hundred seventy-four thousand, eight hundred forty".