780258090 has 16 divisors (see below), whose sum is σ = 1872619488. Its totient is φ = 208068816.

The previous prime is 780258053. The next prime is 780258119. The reversal of 780258090 is 90852087.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13004272 + ... + 13004331.

It is an arithmetic number, because the mean of its divisors is an integer number (117038718).

Almost surely, 2^780258090 is an apocalyptic number.

780258090 is an abundant number, since it is smaller than the sum of its proper divisors (1092361398).

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

780258090 is a wasteful number, since it uses less digits than its factorization.

780258090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26008613.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 780258090 is about 27933.1002575797. The cubic root of 780258090 is about 920.6179252948.

The spelling of 780258090 in words is "seven hundred eighty million, two hundred fifty-eight thousand, ninety".