40992840 has 96 divisors (see below), whose sum is σ = 152268480. Its totient is φ = 9369216.

The previous prime is 40992821. The next prime is 40992859. The reversal of 40992840 is 4829904.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40992821) and next prime (40992859).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 40992795 and 40992804.

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, 5614 + ... + 10653.

It is an arithmetic number, because the mean of its divisors is an integer number (1586130).

Almost surely, 2^40992840 is an apocalyptic number.

40992840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40992840 is an abundant number, since it is smaller than the sum of its proper divisors (111275640).

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

40992840 is a wasteful number, since it uses less digits than its factorization.

40992840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16291 (or 16284 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 40992840 is about 6402.5651109536. The cubic root of 40992840 is about 344.8016503206.

The spelling of 40992840 in words is "forty million, nine hundred ninety-two thousand, eight hundred forty".