354561880 has 32 divisors (see below), whose sum is σ = 823501440. Its totient is φ = 137249280.

The previous prime is 354561871. The next prime is 354561881. The reversal of 354561880 is 88165453.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354561881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141729 + ... + 144208.

It is an arithmetic number, because the mean of its divisors is an integer number (25734420).

Almost surely, 2^354561880 is an apocalyptic number.

It is an amenable number.

354561880 is an abundant number, since it is smaller than the sum of its proper divisors (468939560).

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

354561880 is a wasteful number, since it uses less digits than its factorization.

354561880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285979 (or 285975 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 354561880 is about 18829.8135944040. The cubic root of 354561880 is about 707.7784692123.

The spelling of 354561880 in words is "three hundred fifty-four million, five hundred sixty-one thousand, eight hundred eighty".