40077952 has 16 divisors (see below), whose sum is σ = 79843050. Its totient is φ = 20038912.

The previous prime is 40077943. The next prime is 40077953. The reversal of 40077952 is 25977004.

It can be written as a sum of positive squares in only one way, i.e., 27290176 + 12787776 = 5224^2 + 3576^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (40077953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156427 + ... + 156682.

Almost surely, 2^40077952 is an apocalyptic number.

It is an amenable number.

40077952 is a deficient number, since it is larger than the sum of its proper divisors (39765098).

40077952 is an equidigital number, since it uses as much as digits as its factorization.

40077952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313123 (or 313111 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 40077952 is about 6330.7149675214. The cubic root of 40077952 is about 342.2172052512.

The spelling of 40077952 in words is "forty million, seventy-seven thousand, nine hundred fifty-two".