374781620 has 12 divisors (see below), whose sum is σ = 787041444. Its totient is φ = 149912640.

The previous prime is 374781613. The next prime is 374781623. The reversal of 374781620 is 26187473.

It can be written as a sum of positive squares in 2 ways, for example, as 143376676 + 231404944 = 11974^2 + 15212^2 .

It is a super-2 number, since 2×374781620² = 280922525379648800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (374781623) 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, 9369521 + ... + 9369560.

It is an arithmetic number, because the mean of its divisors is an integer number (65586787).

Almost surely, 2^374781620 is an apocalyptic number.

It is an amenable number.

374781620 is an abundant number, since it is smaller than the sum of its proper divisors (412259824).

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

374781620 is a wasteful number, since it uses less digits than its factorization.

374781620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18739090 (or 18739088 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 374781620 is about 19359.2773625464. The cubic root of 374781620 is about 720.9847764340.

The spelling of 374781620 in words is "three hundred seventy-four million, seven hundred eighty-one thousand, six hundred twenty".