40425780 has 48 divisors (see below), whose sum is σ = 113811264. Its totient is φ = 10721280.

The previous prime is 40425769. The next prime is 40425799. The reversal of 40425780 is 8752404.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 9835 + ... + 13325.

It is an arithmetic number, because the mean of its divisors is an integer number (2371068).

Almost surely, 2^40425780 is an apocalyptic number.

It is an amenable number.

40425780 is an abundant number, since it is smaller than the sum of its proper divisors (73385484).

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

40425780 is a wasteful number, since it uses less digits than its factorization.

40425780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3696 (or 3694 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 40425780 is about 6358.1270827186. The cubic root of 40425780 is about 343.2043650044.

The spelling of 40425780 in words is "forty million, four hundred twenty-five thousand, seven hundred eighty".