1550432480 has 96 divisors (see below), whose sum is σ = 3724255584. Its totient is φ = 609878016.

The previous prime is 1550432449. The next prime is 1550432489. The reversal of 1550432480 is 842340551.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1550432489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4391984 + ... + 4392336.

It is an arithmetic number, because the mean of its divisors is an integer number (38794329).

Almost surely, 2^1550432480 is an apocalyptic number.

1550432480 is a gapful number since it is divisible by the number (10) 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 1550432480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1862127792).

1550432480 is an abundant number, since it is smaller than the sum of its proper divisors (2173823104).

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

1550432480 is a wasteful number, since it uses less digits than its factorization.

1550432480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748 (or 740 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 1550432480 is about 39375.5314884764. The cubic root of 1550432480 is about 1157.4021531111.

The spelling of 1550432480 in words is "one billion, five hundred fifty million, four hundred thirty-two thousand, four hundred eighty".