1550268840 has 32 divisors (see below), whose sum is σ = 4650806880. Its totient is φ = 413404992.

The previous prime is 1550268829. The next prime is 1550268859. The reversal of 1550268840 is 488620551.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6459334 + ... + 6459573.

It is an arithmetic number, because the mean of its divisors is an integer number (145337715).

Almost surely, 2^1550268840 is an apocalyptic number.

1550268840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1550268840 is an abundant number, since it is smaller than the sum of its proper divisors (3100538040).

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

1550268840 is a wasteful number, since it uses less digits than its factorization.

1550268840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12918921 (or 12918917 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 1550268840 is about 39373.4534934390. The cubic root of 1550268840 is about 1157.3614324403.

The spelling of 1550268840 in words is "one billion, five hundred fifty million, two hundred sixty-eight thousand, eight hundred forty".