40631650 has 12 divisors (see below), whose sum is σ = 75574962. Its totient is φ = 16252640.

The previous prime is 40631623. The next prime is 40631677. The reversal of 40631650 is 5613604.

It is an interprime number because it is at equal distance from previous prime (40631623) and next prime (40631677).

It can be written as a sum of positive squares in 3 ways, for example, as 29997529 + 10634121 = 5477^2 + 3261^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 406267 + ... + 406366.

Almost surely, 2^40631650 is an apocalyptic number.

40631650 is a deficient number, since it is larger than the sum of its proper divisors (34943312).

40631650 is a wasteful number, since it uses less digits than its factorization.

40631650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812645 (or 812640 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 40631650 is about 6374.2960395639. The cubic root of 40631650 is about 343.7859730948.

The spelling of 40631650 in words is "forty million, six hundred thirty-one thousand, six hundred fifty".