40400466 has 48 divisors (see below), whose sum is σ = 89653824. Its totient is φ = 12111616.

The previous prime is 40400453. The next prime is 40400513. The reversal of 40400466 is 66400404.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39376 + ... + 40388.

It is an arithmetic number, because the mean of its divisors is an integer number (1867788).

Almost surely, 2^40400466 is an apocalyptic number.

40400466 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

40400466 is an abundant number, since it is smaller than the sum of its proper divisors (49253358).

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

40400466 is a wasteful number, since it uses less digits than its factorization.

40400466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075 (or 1058 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 40400466 is about 6356.1360904247. The cubic root of 40400466 is about 343.1327136198.

The spelling of 40400466 in words is "forty million, four hundred thousand, four hundred sixty-six".