373640 has 16 divisors (see below), whose sum is σ = 840780. Its totient is φ = 149440.

The previous prime is 373631. The next prime is 373649. The reversal of 373640 is 46373.

It is an interprime number because it is at equal distance from previous prime (373631) and next prime (373649).

It can be written as a sum of positive squares in 2 ways, for example, as 362404 + 11236 = 602^2 + 106^2 .

It is not an unprimeable number, because it can be changed into a prime (373649) by changing a digit.

373640 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4631 + ... + 4710.

2³⁷³⁶⁴⁰ is an apocalyptic number.

It is an amenable number.

373640 is an abundant number, since it is smaller than the sum of its proper divisors (467140).

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

373640 is a wasteful number, since it uses less digits than its factorization.

373640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9352 (or 9348 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 373640 is about 611.2609917212. The cubic root of 373640 is about 72.0251969424.

The spelling of 373640 in words is "three hundred seventy-three thousand, six hundred forty".