373866421 has 8 divisors (see below), whose sum is σ = 384128640. Its totient is φ = 363735168.

The previous prime is 373866419. The next prime is 373866443. The reversal of 373866421 is 124668373.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 373866421 - 2¹ = 373866419 is a prime.

It is a super-2 number, since 2×373866421² = 279552201502698482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (373866461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26941 + ... + 38386.

It is an arithmetic number, because the mean of its divisors is an integer number (48016080).

Almost surely, 2^373866421 is an apocalyptic number.

It is an amenable number.

373866421 is a deficient number, since it is larger than the sum of its proper divisors (10262219).

373866421 is an equidigital number, since it uses as much as digits as its factorization.

373866421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65483.

The product of its digits is 145152, while the sum is 40.

The square root of 373866421 is about 19335.6256945567. The cubic root of 373866421 is about 720.3974278341.

The spelling of 373866421 in words is "three hundred seventy-three million, eight hundred sixty-six thousand, four hundred twenty-one".