372440 has 16 divisors (see below), whose sum is σ = 838080. Its totient is φ = 148960.

The previous prime is 372413. The next prime is 372443. The reversal of 372440 is 44273.

372440 = 145² + 146² + ... + 160².

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (372443) by changing a digit.

372440 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4616 + ... + 4695.

It is an arithmetic number, because the mean of its divisors is an integer number (52380).

2³⁷²⁴⁴⁰ is an apocalyptic number.

It is an amenable number.

372440 is an abundant number, since it is smaller than the sum of its proper divisors (465640).

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

372440 is a wasteful number, since it uses less digits than its factorization.

372440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9322 (or 9318 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 372440 is about 610.2786248919. The cubic root of 372440 is about 71.9480077321.

The spelling of 372440 in words is "three hundred seventy-two thousand, four hundred forty", and thus it is an iban number.