40249488 has 80 divisors (see below), whose sum is σ = 108225216. Its totient is φ = 12879360.

The previous prime is 40249487. The next prime is 40249511. The reversal of 40249488 is 88494204.

It is not an unprimeable number, because it can be changed into a prime (40249483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232570 + ... + 232742.

Almost surely, 2^40249488 is an apocalyptic number.

40249488 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 40249488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54112608).

40249488 is an abundant number, since it is smaller than the sum of its proper divisors (67975728).

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

40249488 is a wasteful number, since it uses less digits than its factorization.

40249488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 40249488 is about 6344.2484188436. The cubic root of 40249488 is about 342.7047469544.

The spelling of 40249488 in words is "forty million, two hundred forty-nine thousand, four hundred eighty-eight".