40456977 has 32 divisors (see below), whose sum is σ = 61986816. Its totient is φ = 23232000.

The previous prime is 40456973. The next prime is 40456987. The reversal of 40456977 is 77965404.

It is not a de Polignac number, because 40456977 - 2² = 40456973 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40456973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114433 + ... + 114785.

It is an arithmetic number, because the mean of its divisors is an integer number (1937088).

Almost surely, 2^40456977 is an apocalyptic number.

It is an amenable number.

40456977 is a deficient number, since it is larger than the sum of its proper divisors (21529839).

40456977 is a wasteful number, since it uses less digits than its factorization.

40456977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541.

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 40456977 is about 6360.5799263904. The cubic root of 40456977 is about 343.2926271112.

The spelling of 40456977 in words is "forty million, four hundred fifty-six thousand, nine hundred seventy-seven".