258048990 has 96 divisors (see below), whose sum is σ = 703213056. Its totient is φ = 68078880.

The previous prime is 258048943. The next prime is 258049007. The reversal of 258048990 is 99840852.

258048990 is a `hidden beast` number, since 2 + 5 + 80 + 489 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 249775 + ... + 250805.

It is an arithmetic number, because the mean of its divisors is an integer number (7325136).

Almost surely, 2^258048990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 258048990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351606528).

258048990 is an abundant number, since it is smaller than the sum of its proper divisors (445164066).

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

258048990 is a wasteful number, since it uses less digits than its factorization.

258048990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156 (or 1144 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 258048990 is about 16063.9033239123. The cubic root of 258048990 is about 636.6499674296.

The spelling of 258048990 in words is "two hundred fifty-eight million, forty-eight thousand, nine hundred ninety".