56406378 has 16 divisors (see below), whose sum is σ = 128928960. Its totient is φ = 16116096.

The previous prime is 56406377. The next prime is 56406403. The reversal of 56406378 is 87360465.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56406377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671463 + ... + 671546.

It is an arithmetic number, because the mean of its divisors is an integer number (8058060).

Almost surely, 2^56406378 is an apocalyptic number.

56406378 is an abundant number, since it is smaller than the sum of its proper divisors (72522582).

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

56406378 is a wasteful number, since it uses less digits than its factorization.

56406378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343021.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 56406378 is about 7510.4179644012. The cubic root of 56406378 is about 383.5094511875.

The spelling of 56406378 in words is "fifty-six million, four hundred six thousand, three hundred seventy-eight".