40457400 has 48 divisors (see below), whose sum is σ = 125419800. Its totient is φ = 10788480.

The previous prime is 40457377. The next prime is 40457413. The reversal of 40457400 is 475404.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33115 + ... + 34314.

Almost surely, 2^40457400 is an apocalyptic number.

40457400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40457400 is an abundant number, since it is smaller than the sum of its proper divisors (84962400).

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

40457400 is a wasteful number, since it uses less digits than its factorization.

40457400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67448 (or 67439 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 40457400 is about 6360.6131779884. The cubic root of 40457400 is about 343.2938235450.

The spelling of 40457400 in words is "forty million, four hundred fifty-seven thousand, four hundred".