40748988 has 72 divisors (see below), whose sum is σ = 113654352. Its totient is φ = 11321856.

The previous prime is 40748987. The next prime is 40748989. The reversal of 40748988 is 88984704.

It is an interprime number because it is at equal distance from previous prime (40748987) and next prime (40748989).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40748987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20820 + ... + 22692.

Almost surely, 2^40748988 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 40748988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56827176).

40748988 is an abundant number, since it is smaller than the sum of its proper divisors (72905364).

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

40748988 is a wasteful number, since it uses less digits than its factorization.

40748988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931 (or 1922 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 40748988 is about 6383.4934009522. The cubic root of 40748988 is about 344.1165888388.

The spelling of 40748988 in words is "forty million, seven hundred forty-eight thousand, nine hundred eighty-eight".