874649490 has 256 divisors, whose sum is σ = 2664990720. Its totient is φ = 180449280.

The previous prime is 874649429. The next prime is 874649509. The reversal of 874649490 is 94946478.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4886221 + ... + 4886399.

It is an arithmetic number, because the mean of its divisors is an integer number (10410120).

Almost surely, 2^874649490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 874649490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1332495360).

874649490 is an abundant number, since it is smaller than the sum of its proper divisors (1790341230).

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

874649490 is a wasteful number, since it uses less digits than its factorization.

874649490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297.

The product of its (nonzero) digits is 1741824, while the sum is 51.

The square root of 874649490 is about 29574.4736216894. The cubic root of 874649490 is about 956.3378597559.

The spelling of 874649490 in words is "eight hundred seventy-four million, six hundred forty-nine thousand, four hundred ninety".