1550430240 has 96 divisors (see below), whose sum is σ = 5015908800. Its totient is φ = 402269184.

The previous prime is 1550430239. The next prime is 1550430251. The reversal of 1550430240 is 420340551.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1550430240.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25890 + ... + 61409.

It is an arithmetic number, because the mean of its divisors is an integer number (52249050).

Almost surely, 2^1550430240 is an apocalyptic number.

1550430240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1550430240 is an abundant number, since it is smaller than the sum of its proper divisors (3465478560).

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

1550430240 is a wasteful number, since it uses less digits than its factorization.

1550430240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87354 (or 87346 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 1550430240 is about 39375.5030444057. The cubic root of 1550430240 is about 1157.4015957221.

Adding to 1550430240 its reverse (420340551), we get a palindrome (1970770791).

The spelling of 1550430240 in words is "one billion, five hundred fifty million, four hundred thirty thousand, two hundred forty".