40499620 has 24 divisors (see below), whose sum is σ = 97199424. Its totient is φ = 13885536.

The previous prime is 40499617. The next prime is 40499623. The reversal of 40499620 is 2699404.

It is an interprime number because it is at equal distance from previous prime (40499617) and next prime (40499623).

It is not an unprimeable number, because it can be changed into a prime (40499623) 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, 144502 + ... + 144781.

It is an arithmetic number, because the mean of its divisors is an integer number (4049976).

Almost surely, 2^40499620 is an apocalyptic number.

It is an amenable number.

40499620 is an abundant number, since it is smaller than the sum of its proper divisors (56699804).

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

40499620 is a wasteful number, since it uses less digits than its factorization.

40499620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289299 (or 289297 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 40499620 is about 6363.9311749892. The cubic root of 40499620 is about 343.4131987098.

The spelling of 40499620 in words is "forty million, four hundred ninety-nine thousand, six hundred twenty".