258699402 has 96 divisors (see below), whose sum is σ = 656248320. Its totient is φ = 72938880.

The previous prime is 258699379. The next prime is 258699409. The reversal of 258699402 is 204996852.

It is not an unprimeable number, because it can be changed into a prime (258699409) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 136888 + ... + 138764.

It is an arithmetic number, because the mean of its divisors is an integer number (6835920).

Almost surely, 2^258699402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 258699402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328124160).

258699402 is an abundant number, since it is smaller than the sum of its proper divisors (397548918).

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

258699402 is a wasteful number, since it uses less digits than its factorization.

258699402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1948 (or 1945 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 258699402 is about 16084.1351026407. The cubic root of 258699402 is about 637.1844103468.

The spelling of 258699402 in words is "two hundred fifty-eight million, six hundred ninety-nine thousand, four hundred two".