40623704 has 32 divisors (see below), whose sum is σ = 86711040. Its totient is φ = 17661600.

The previous prime is 40623703. The next prime is 40623707. The reversal of 40623704 is 40732604.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40623701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8012 + ... + 12059.

It is an arithmetic number, because the mean of its divisors is an integer number (2709720).

Almost surely, 2^40623704 is an apocalyptic number.

40623704 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40623704 is an abundant number, since it is smaller than the sum of its proper divisors (46087336).

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

40623704 is a wasteful number, since it uses less digits than its factorization.

40623704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20111 (or 20107 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 40623704 is about 6373.6727245757. The cubic root of 40623704 is about 343.7635611620.

Subtracting 40623704 from its reverse (40732604), we obtain a square (108900 = 330²).

The spelling of 40623704 in words is "forty million, six hundred twenty-three thousand, seven hundred four".