40725740 has 48 divisors (see below), whose sum is σ = 98219520. Its totient is φ = 14028480.

The previous prime is 40725739. The next prime is 40725767. The reversal of 40725740 is 4752704.

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, 692 + ... + 9051.

It is an arithmetic number, because the mean of its divisors is an integer number (2046240).

Almost surely, 2^40725740 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 40725740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49109760).

40725740 is an abundant number, since it is smaller than the sum of its proper divisors (57493780).

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

40725740 is a wasteful number, since it uses less digits than its factorization.

40725740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9782 (or 9780 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 40725740 is about 6381.6721946524. The cubic root of 40725740 is about 344.0511349080.

The spelling of 40725740 in words is "forty million, seven hundred twenty-five thousand, seven hundred forty".