38400378 has 16 divisors (see below), whose sum is σ = 76972896. Its totient is φ = 12771440.

The previous prime is 38400361. The next prime is 38400389. The reversal of 38400378 is 87300483.

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, 4176 + ... + 9707.

It is an arithmetic number, because the mean of its divisors is an integer number (4810806).

Almost surely, 2^38400378 is an apocalyptic number.

38400378 is an abundant number, since it is smaller than the sum of its proper divisors (38572518).

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

38400378 is a wasteful number, since it uses less digits than its factorization.

38400378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14349.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 38400378 is about 6196.8038536007. The cubic root of 38400378 is about 337.3741731224.

The spelling of 38400378 in words is "thirty-eight million, four hundred thousand, three hundred seventy-eight".