258061620 has 48 divisors (see below), whose sum is σ = 723804480. Its totient is φ = 68699136.

The previous prime is 258061607. The next prime is 258061663. The reversal of 258061620 is 26160852.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35236 + ... + 41924.

It is an arithmetic number, because the mean of its divisors is an integer number (15079260).

Almost surely, 2^258061620 is an apocalyptic number.

258061620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

258061620 is an abundant number, since it is smaller than the sum of its proper divisors (465742860).

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

258061620 is a wasteful number, since it uses less digits than its factorization.

258061620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7344 (or 7342 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 258061620 is about 16064.2964365079. The cubic root of 258061620 is about 636.6603540335.

The spelling of 258061620 in words is "two hundred fifty-eight million, sixty-one thousand, six hundred twenty".