371694420 has 90 divisors (see below), whose sum is σ = 1168458522. Its totient is φ = 98911584.

The previous prime is 371694419. The next prime is 371694437. The reversal of 371694420 is 24496173.

It can be written as a sum of positive squares in only one way, i.e., 297355536 + 74338884 = 17244^2 + 8622^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 775741 + ... + 776219.

Almost surely, 2^371694420 is an apocalyptic number.

371694420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 371694420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (584229261).

371694420 is an abundant number, since it is smaller than the sum of its proper divisors (796764102).

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

371694420 is an equidigital number, since it uses as much as digits as its factorization.

371694420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 371694420 is about 19279.3781020032. The cubic root of 371694420 is about 718.9996524559. Note that the first 3 decimals are identical.

The spelling of 371694420 in words is "three hundred seventy-one million, six hundred ninety-four thousand, four hundred twenty".