40749320 has 16 divisors (see below), whose sum is σ = 91686060. Its totient is φ = 16299712.

The previous prime is 40749299. The next prime is 40749341. The reversal of 40749320 is 2394704.

It is an interprime number because it is at equal distance from previous prime (40749299) and next prime (40749341).

It can be written as a sum of positive squares in 2 ways, for example, as 35450116 + 5299204 = 5954^2 + 2302^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 509327 + ... + 509406.

Almost surely, 2^40749320 is an apocalyptic number.

40749320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40749320 is an abundant number, since it is smaller than the sum of its proper divisors (50936740).

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

40749320 is a wasteful number, since it uses less digits than its factorization.

40749320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018744 (or 1018740 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 40749320 is about 6383.5194054691. The cubic root of 40749320 is about 344.1175233929.

The spelling of 40749320 in words is "forty million, seven hundred forty-nine thousand, three hundred twenty".