40394272 has 12 divisors (see below), whose sum is σ = 79526286. Its totient is φ = 20197120.

The previous prime is 40394267. The next prime is 40394281. The reversal of 40394272 is 27249304.

It can be written as a sum of positive squares in only one way, i.e., 23386896 + 17007376 = 4836^2 + 4124^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631129 + ... + 631192.

Almost surely, 2^40394272 is an apocalyptic number.

It is an amenable number.

40394272 is a deficient number, since it is larger than the sum of its proper divisors (39132014).

40394272 is a wasteful number, since it uses less digits than its factorization.

40394272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262331 (or 1262323 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 40394272 is about 6355.6488260444. The cubic root of 40394272 is about 343.1151769190.

The spelling of 40394272 in words is "forty million, three hundred ninety-four thousand, two hundred seventy-two".