1550868432 has 60 divisors (see below), whose sum is σ = 4052925120. Its totient is φ = 511022336.

The previous prime is 1550868427. The next prime is 1550868443. The reversal of 1550868432 is 2348680551.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 378169 + ... + 382247.

It is an arithmetic number, because the mean of its divisors is an integer number (67548752).

Almost surely, 2^1550868432 is an apocalyptic number.

1550868432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1550868432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2026462560).

1550868432 is an abundant number, since it is smaller than the sum of its proper divisors (2502056688).

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

1550868432 is an equidigital number, since it uses as much as digits as its factorization.

1550868432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4268 (or 4173 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The square root of 1550868432 is about 39381.0669230787. The cubic root of 1550868432 is about 1157.5106227382.

The spelling of 1550868432 in words is "one billion, five hundred fifty million, eight hundred sixty-eight thousand, four hundred thirty-two".