371493813 has 16 divisors (see below), whose sum is σ = 507741696. Its totient is φ = 241474800.

The previous prime is 371493791. The next prime is 371493847. The reversal of 371493813 is 318394173.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-371493813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (371493883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81238 + ... + 85688.

It is an arithmetic number, because the mean of its divisors is an integer number (31733856).

Almost surely, 2^371493813 is an apocalyptic number.

It is an amenable number.

371493813 is a deficient number, since it is larger than the sum of its proper divisors (136247883).

371493813 is a wasteful number, since it uses less digits than its factorization.

371493813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5144.

The product of its digits is 54432, while the sum is 39.

The square root of 371493813 is about 19274.1747683267. The cubic root of 371493813 is about 718.8702788702.

The spelling of 371493813 in words is "three hundred seventy-one million, four hundred ninety-three thousand, eight hundred thirteen".