40321296 has 30 divisors (see below), whose sum is σ = 112844030. Its totient is φ = 13440384.

The previous prime is 40321291. The next prime is 40321313. The reversal of 40321296 is 69212304.

It can be written as a sum of positive squares in only one way, i.e., 40144896 + 176400 = 6336^2 + 420^2 .

It is a super-2 number, since 2×40321296² = 3251613822239232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40321291) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139861 + ... + 140148.

Almost surely, 2^40321296 is an apocalyptic number.

It is an amenable number.

40321296 is an abundant number, since it is smaller than the sum of its proper divisors (72522734).

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

40321296 is a wasteful number, since it uses less digits than its factorization.

40321296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280023 (or 280014 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 40321296 is about 6349.9051961427. The cubic root of 40321296 is about 342.9084292327.

The spelling of 40321296 in words is "forty million, three hundred twenty-one thousand, two hundred ninety-six".