357472421 has 4 divisors (see below), whose sum is σ = 358416000. Its totient is φ = 356528844.

The previous prime is 357472411. The next prime is 357472469. The reversal of 357472421 is 124274753.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-357472421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (357472411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 471221 + ... + 471978.

It is an arithmetic number, because the mean of its divisors is an integer number (89604000).

Almost surely, 2^357472421 is an apocalyptic number.

It is an amenable number.

357472421 is a deficient number, since it is larger than the sum of its proper divisors (943579).

357472421 is an equidigital number, since it uses as much as digits as its factorization.

357472421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943578.

The product of its digits is 47040, while the sum is 35.

The square root of 357472421 is about 18906.9410799315. The cubic root of 357472421 is about 709.7098735272.

The spelling of 357472421 in words is "three hundred fifty-seven million, four hundred seventy-two thousand, four hundred twenty-one".