40723380 has 36 divisors (see below), whose sum is σ = 123528132. Its totient is φ = 10859520.

The previous prime is 40723321. The next prime is 40723433. The reversal of 40723380 is 8332704.

It can be written as a sum of positive squares in 2 ways, for example, as 22982436 + 17740944 = 4794^2 + 4212^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112941 + ... + 113300.

It is an arithmetic number, because the mean of its divisors is an integer number (3431337).

Almost surely, 2^40723380 is an apocalyptic number.

It is an amenable number.

40723380 is an abundant number, since it is smaller than the sum of its proper divisors (82804752).

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

40723380 is a wasteful number, since it uses less digits than its factorization.

40723380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226256 (or 226251 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 40723380 is about 6381.4872874589. The cubic root of 40723380 is about 344.0444890180.

The spelling of 40723380 in words is "forty million, seven hundred twenty-three thousand, three hundred eighty".