40392492 has 48 divisors (see below), whose sum is σ = 109492992. Its totient is φ = 11350080.

The previous prime is 40392481. The next prime is 40392509. The reversal of 40392492 is 29429304.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1183 + ... + 9065.

It is an arithmetic number, because the mean of its divisors is an integer number (2281104).

Almost surely, 2^40392492 is an apocalyptic number.

40392492 is a gapful number since it is divisible by the number (42) 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 40392492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54746496).

40392492 is an abundant number, since it is smaller than the sum of its proper divisors (69100500).

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

40392492 is a wasteful number, since it uses less digits than its factorization.

40392492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7958 (or 7956 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 40392492 is about 6355.5087915917. The cubic root of 40392492 is about 343.1101369802.

The spelling of 40392492 in words is "forty million, three hundred ninety-two thousand, four hundred ninety-two".