40347492 has 24 divisors (see below), whose sum is σ = 97181952. Its totient is φ = 13015200.

The previous prime is 40347473. The next prime is 40347493. The reversal of 40347492 is 29474304.

It is a super-2 number, since 2×40347492² = 3255840221380128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40347493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53859 + ... + 54602.

It is an arithmetic number, because the mean of its divisors is an integer number (4049248).

Almost surely, 2^40347492 is an apocalyptic number.

It is an amenable number.

40347492 is an abundant number, since it is smaller than the sum of its proper divisors (56834460).

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

40347492 is a wasteful number, since it uses less digits than its factorization.

40347492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108499 (or 108497 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 40347492 is about 6351.9675691867. The cubic root of 40347492 is about 342.9826735773.

It can be divided in two parts, 403 and 47492, that added together give a triangular number (47895 = T₃₀₉).

The spelling of 40347492 in words is "forty million, three hundred forty-seven thousand, four hundred ninety-two".