40497700 has 18 divisors (see below), whose sum is σ = 87880226. Its totient is φ = 16199040.

The previous prime is 40497697. The next prime is 40497703. The reversal of 40497700 is 779404.

It is an interprime number because it is at equal distance from previous prime (40497697) and next prime (40497703).

It can be written as a sum of positive squares in 3 ways, for example, as 2748964 + 37748736 = 1658^2 + 6144^2 .

It is not an unprimeable number, because it can be changed into a prime (40497703) 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, 202389 + ... + 202588.

Almost surely, 2^40497700 is an apocalyptic number.

It is an amenable number.

40497700 is an abundant number, since it is smaller than the sum of its proper divisors (47382526).

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

40497700 is a wasteful number, since it uses less digits than its factorization.

40497700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404991 (or 404984 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 40497700 is about 6363.7803230470. The cubic root of 40497700 is about 343.4077717966.

The spelling of 40497700 in words is "forty million, four hundred ninety-seven thousand, seven hundred".