40377472 has 16 divisors (see below), whose sum is σ = 80439750. Its totient is φ = 20188672.

The previous prime is 40377439. The next prime is 40377481. The reversal of 40377472 is 27477304.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 23270976 + 17106496 = 4824^2 + 4136^2 .

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

It is a super-2 number, since 2×40377472² = 3260680490221568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157597 + ... + 157852.

Almost surely, 2^40377472 is an apocalyptic number.

It is an amenable number.

40377472 is a deficient number, since it is larger than the sum of its proper divisors (40062278).

40377472 is an equidigital number, since it uses as much as digits as its factorization.

40377472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315463 (or 315451 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 34.

The square root of 40377472 is about 6354.3270296704. The cubic root of 40377472 is about 343.0676030593.

The spelling of 40377472 in words is "forty million, three hundred seventy-seven thousand, four hundred seventy-two".