40495900 has 18 divisors (see below), whose sum is σ = 87876320. Its totient is φ = 16198320.

The previous prime is 40495879. The next prime is 40495901. The reversal of 40495900 is 959404.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40495901) 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, 202380 + ... + 202579.

Almost surely, 2^40495900 is an apocalyptic number.

It is an amenable number.

40495900 is an abundant number, since it is smaller than the sum of its proper divisors (47380420).

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

40495900 is a wasteful number, since it uses less digits than its factorization.

40495900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404973 (or 404966 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 40495900 is about 6363.6388961034. The cubic root of 40495900 is about 343.4026839098.

The spelling of 40495900 in words is "forty million, four hundred ninety-five thousand, nine hundred".