40037340 has 48 divisors (see below), whose sum is σ = 128120832. Its totient is φ = 9151296.

The previous prime is 40037323. The next prime is 40037353. The reversal of 40037340 is 4373004.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

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, 47244 + ... + 48083.

It is an arithmetic number, because the mean of its divisors is an integer number (2669184).

Almost surely, 2^40037340 is an apocalyptic number.

It is an amenable number.

40037340 is an abundant number, since it is smaller than the sum of its proper divisors (88083492).

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

40037340 is a wasteful number, since it uses less digits than its factorization.

40037340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95346 (or 95344 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 40037340 is about 6327.5066179341. The cubic root of 40037340 is about 342.1015737420.

The spelling of 40037340 in words is "forty million, thirty-seven thousand, three hundred forty".