370531421 has 4 divisors (see below), whose sum is σ = 399033852. Its totient is φ = 342028992.

The previous prime is 370531397. The next prime is 370531457. The reversal of 370531421 is 124135073.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 124135073 = 271 ⋅458063.

It can be written as a sum of positive squares in 2 ways, for example, as 151905625 + 218625796 = 12325^2 + 14786^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-370531421 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 (370531481) 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, 14251196 + ... + 14251221.

It is an arithmetic number, because the mean of its divisors is an integer number (99758463).

Almost surely, 2^370531421 is an apocalyptic number.

It is an amenable number.

370531421 is a deficient number, since it is larger than the sum of its proper divisors (28502431).

370531421 is a wasteful number, since it uses less digits than its factorization.

370531421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28502430.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 370531421 is about 19249.1927363201. The cubic root of 370531421 is about 718.2489735123.

Adding to 370531421 its reverse (124135073), we get a palindrome (494666494).

The spelling of 370531421 in words is "three hundred seventy million, five hundred thirty-one thousand, four hundred twenty-one".