274397904 has 120 divisors (see below), whose sum is σ = 842740704. Its totient is φ = 82656000.

The previous prime is 274397899. The next prime is 274397909. The reversal of 274397904 is 409793472.

It is an interprime number because it is at equal distance from previous prime (274397899) and next prime (274397909).

It is a self number, because there is not a number n which added to its sum of digits gives 274397904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274397909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 333814 + ... + 334634.

Almost surely, 2^274397904 is an apocalyptic number.

274397904 is a gapful number since it is divisible by the number (24) 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 274397904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (421370352).

274397904 is an abundant number, since it is smaller than the sum of its proper divisors (568342800).

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

274397904 is a wasteful number, since it uses less digits than its factorization.

274397904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057 (or 1048 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 274397904 is about 16564.9601267253. The cubic root of 274397904 is about 649.8207821488.

The spelling of 274397904 in words is "two hundred seventy-four million, three hundred ninety-seven thousand, nine hundred four".