40919240 has 16 divisors (see below), whose sum is σ = 92068380. Its totient is φ = 16367680.

The previous prime is 40919173. The next prime is 40919251. The reversal of 40919240 is 4291904.

It can be written as a sum of positive squares in 2 ways, for example, as 38365636 + 2553604 = 6194^2 + 1598^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511451 + ... + 511530.

Almost surely, 2^40919240 is an apocalyptic number.

40919240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40919240 is an abundant number, since it is smaller than the sum of its proper divisors (51149140).

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

40919240 is a wasteful number, since it uses less digits than its factorization.

40919240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022992 (or 1022988 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 40919240 is about 6396.8148323990. The cubic root of 40919240 is about 344.5951703234.

It can be divided in two parts, 4091 and 9240, that added together give a palindrome (13331).

The spelling of 40919240 in words is "forty million, nine hundred nineteen thousand, two hundred forty".