40248992 has 96 divisors (see below), whose sum is σ = 97776000. Its totient is φ = 16257024.

The previous prime is 40248953. The next prime is 40249009. The reversal of 40248992 is 29984204.

It is a Harshad number since it is a multiple of its sum of digits (38).

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, 208448 + ... + 208640.

It is an arithmetic number, because the mean of its divisors is an integer number (1018500).

Almost surely, 2^40248992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40248992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48888000).

40248992 is an abundant number, since it is smaller than the sum of its proper divisors (57527008).

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

40248992 is a wasteful number, since it uses less digits than its factorization.

40248992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 40248992 is about 6344.2093281984. The cubic root of 40248992 is about 342.7033392160.

It can be divided in two parts, 402 and 48992, that added together give a palindrome (49394).

The spelling of 40248992 in words is "forty million, two hundred forty-eight thousand, nine hundred ninety-two".