155598432 has 48 divisors (see below), whose sum is σ = 445580352. Its totient is φ = 47150720.

The previous prime is 155598419. The next prime is 155598439. The reversal of 155598432 is 234895551.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155598439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72618 + ... + 74729.

It is an arithmetic number, because the mean of its divisors is an integer number (9282924).

Almost surely, 2^155598432 is an apocalyptic number.

155598432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155598432 is an abundant number, since it is smaller than the sum of its proper divisors (289981920).

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

155598432 is a wasteful number, since it uses less digits than its factorization.

155598432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147371 (or 147363 counting only the distinct ones).

The product of its digits is 216000, while the sum is 42.

The square root of 155598432 is about 12473.9100525858. The cubic root of 155598432 is about 537.8589570525.

The spelling of 155598432 in words is "one hundred fifty-five million, five hundred ninety-eight thousand, four hundred thirty-two".