40251804 has 48 divisors (see below), whose sum is σ = 100759680. Its totient is φ = 12467520.

The previous prime is 40251803. The next prime is 40251829. The reversal of 40251804 is 40815204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40251803) 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, 10419 + ... + 13749.

It is an arithmetic number, because the mean of its divisors is an integer number (2099160).

Almost surely, 2^40251804 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 40251804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50379840).

40251804 is an abundant number, since it is smaller than the sum of its proper divisors (60507876).

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

40251804 is a wasteful number, since it uses less digits than its factorization.

40251804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3410 (or 3408 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 40251804 is about 6344.4309437490. The cubic root of 40251804 is about 342.7113200316.

The spelling of 40251804 in words is "forty million, two hundred fifty-one thousand, eight hundred four".