374257820 has 48 divisors (see below), whose sum is σ = 832235040. Its totient is φ = 140979456.

The previous prime is 374257783. The next prime is 374257837. The reversal of 374257820 is 28752473.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62894 + ... + 68586.

It is an arithmetic number, because the mean of its divisors is an integer number (17338230).

Almost surely, 2^374257820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 374257820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (416117520).

374257820 is an abundant number, since it is smaller than the sum of its proper divisors (457977220).

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

374257820 is a wasteful number, since it uses less digits than its factorization.

374257820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5894 (or 5892 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 374257820 is about 19345.7442348440. The cubic root of 374257820 is about 720.6487337186.

The spelling of 374257820 in words is "three hundred seventy-four million, two hundred fifty-seven thousand, eight hundred twenty".