40723402 has 12 divisors (see below), whose sum is σ = 61827606. Its totient is φ = 20115200.

The previous prime is 40723321. The next prime is 40723433. The reversal of 40723402 is 20432704.

It can be written as a sum of positive squares in 3 ways, for example, as 40717161 + 6241 = 6381^2 + 79^2 .

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, 90474 + ... + 90922.

Almost surely, 2^40723402 is an apocalyptic number.

40723402 is a deficient number, since it is larger than the sum of its proper divisors (21104204).

40723402 is an equidigital number, since it uses as much as digits as its factorization.

40723402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001 (or 552 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 40723402 is about 6381.4890111948. The cubic root of 40723402 is about 344.0445509724.

The spelling of 40723402 in words is "forty million, seven hundred twenty-three thousand, four hundred two".