40397310 has 24 divisors (see below), whose sum is σ = 105033240. Its totient is φ = 10772592.

The previous prime is 40397297. The next prime is 40397317. The reversal of 40397310 is 1379304.

It is a super-2 number, since 2×40397310² = 3263885310472200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40397317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224340 + ... + 224519.

It is an arithmetic number, because the mean of its divisors is an integer number (4376385).

Almost surely, 2^40397310 is an apocalyptic number.

40397310 is an abundant number, since it is smaller than the sum of its proper divisors (64635930).

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

40397310 is a wasteful number, since it uses less digits than its factorization.

40397310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448872 (or 448869 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 40397310 is about 6355.8878215400. The cubic root of 40397310 is about 343.1237784503.

The spelling of 40397310 in words is "forty million, three hundred ninety-seven thousand, three hundred ten".