40720700 has 18 divisors (see below), whose sum is σ = 88364136. Its totient is φ = 16288240.

The previous prime is 40720681. The next prime is 40720703. The reversal of 40720700 is 702704.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40720703) 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, 203504 + ... + 203703.

Almost surely, 2^40720700 is an apocalyptic number.

It is an amenable number.

40720700 is an abundant number, since it is smaller than the sum of its proper divisors (47643436).

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

40720700 is a wasteful number, since it uses less digits than its factorization.

40720700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407221 (or 407214 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 20.

The square root of 40720700 is about 6381.2773016066. The cubic root of 40720700 is about 344.0369416790.

The spelling of 40720700 in words is "forty million, seven hundred twenty thousand, seven hundred".