40744980 has 72 divisors (see below), whose sum is σ = 126630504. Its totient is φ = 10598400.

The previous prime is 40744973. The next prime is 40744993. The reversal of 40744980 is 8944704.

It can be written as a sum of positive squares in 4 ways, for example, as 219024 + 40525956 = 468^2 + 6366^2 .

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

It is a congruent number.

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, 4620 + ... + 10140.

It is an arithmetic number, because the mean of its divisors is an integer number (1758757).

Almost surely, 2^40744980 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 40744980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63315252).

40744980 is an abundant number, since it is smaller than the sum of its proper divisors (85885524).

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

40744980 is a wasteful number, since it uses less digits than its factorization.

40744980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5577 (or 5572 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 40744980 is about 6383.1794585457. The cubic root of 40744980 is about 344.1053062313.

The spelling of 40744980 in words is "forty million, seven hundred forty-four thousand, nine hundred eighty".