274769490 has 128 divisors (see below), whose sum is σ = 713836800. Its totient is φ = 67558400.

The previous prime is 274769459. The next prime is 274769497. The reversal of 274769490 is 94967472.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (274769497) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2720440 + ... + 2720540.

It is an arithmetic number, because the mean of its divisors is an integer number (5576850).

Almost surely, 2^274769490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 274769490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356918400).

274769490 is an abundant number, since it is smaller than the sum of its proper divisors (439067310).

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

274769490 is a wasteful number, since it uses less digits than its factorization.

274769490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252.

The product of its (nonzero) digits is 762048, while the sum is 48.

The square root of 274769490 is about 16576.1723567294. The cubic root of 274769490 is about 650.1139760686.

The spelling of 274769490 in words is "two hundred seventy-four million, seven hundred sixty-nine thousand, four hundred ninety".