40623408 has 120 divisors (see below), whose sum is σ = 131229696. Its totient is φ = 11491200.

The previous prime is 40623397. The next prime is 40623419. The reversal of 40623408 is 80432604.

It is an interprime number because it is at equal distance from previous prime (40623397) and next prime (40623419).

It is a super-2 number, since 2×40623408² = 3300522555068928, which contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 192423 + ... + 192633.

Almost surely, 2^40623408 is an apocalyptic number.

40623408 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40623408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65614848).

40623408 is an abundant number, since it is smaller than the sum of its proper divisors (90606288).

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

40623408 is a wasteful number, since it uses less digits than its factorization.

40623408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 414 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 40623408 is about 6373.6495040126. The cubic root of 40623408 is about 343.7627262286.

The spelling of 40623408 in words is "forty million, six hundred twenty-three thousand, four hundred eight".