1555033940 has 48 divisors (see below), whose sum is σ = 3456794880. Its totient is φ = 586588800.

The previous prime is 1555033829. The next prime is 1555033973. The reversal of 1555033940 is 493305551.

It is a self number, because there is not a number n which added to its sum of digits gives 1555033940.

It is a congruent number.

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, 6236 + ... + 56115.

It is an arithmetic number, because the mean of its divisors is an integer number (72016560).

Almost surely, 2^1555033940 is an apocalyptic number.

1555033940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1555033940 is an abundant number, since it is smaller than the sum of its proper divisors (1901760940).

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

1555033940 is a wasteful number, since it uses less digits than its factorization.

1555033940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62432 (or 62430 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 35.

The square root of 1555033940 is about 39433.9186487978. The cubic root of 1555033940 is about 1158.5460231332.

The spelling of 1555033940 in words is "one billion, five hundred fifty-five million, thirty-three thousand, nine hundred forty".