40291596 has 36 divisors (see below), whose sum is σ = 104019552. Its totient is φ = 13144224.

The previous prime is 40291583. The next prime is 40291597. The reversal of 40291596 is 69519204.

40291596 is a `hidden beast` number, since 40 + 29 + 1 + 596 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 40291596.

It is not an unprimeable number, because it can be changed into a prime (40291597) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10215 + ... + 13598.

It is an arithmetic number, because the mean of its divisors is an integer number (2889432).

Almost surely, 2^40291596 is an apocalyptic number.

It is an amenable number.

40291596 is an abundant number, since it is smaller than the sum of its proper divisors (63727956).

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

40291596 is a wasteful number, since it uses less digits than its factorization.

40291596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23870 (or 23865 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 40291596 is about 6347.5661477451. The cubic root of 40291596 is about 342.8242149925.

It can be divided in two parts, 4029 and 1596, that added together give a square (5625 = 75²).

The spelling of 40291596 in words is "forty million, two hundred ninety-one thousand, five hundred ninety-six".