40620744 has 64 divisors (see below), whose sum is σ = 113568000. Its totient is φ = 13452480.

The previous prime is 40620739. The next prime is 40620751. The reversal of 40620744 is 44702604.

40620744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40620744² = 3300089686227072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38577 + ... + 39615.

It is an arithmetic number, because the mean of its divisors is an integer number (1774500).

Almost surely, 2^40620744 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 40620744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56784000).

40620744 is an abundant number, since it is smaller than the sum of its proper divisors (72947256).

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

40620744 is a wasteful number, since it uses less digits than its factorization.

40620744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235 (or 1225 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 40620744 is about 6373.4405151378. The cubic root of 40620744 is about 343.7552116455.

The spelling of 40620744 in words is "forty million, six hundred twenty thousand, seven hundred forty-four".