1553379408 has 60 divisors (see below), whose sum is σ = 4968351648. Its totient is φ = 443822400.

The previous prime is 1553379407. The next prime is 1553379413. The reversal of 1553379408 is 8049733551.

1553379408 is a `hidden beast` number, since 1 + 5 + 533 + 79 + 40 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553379407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 769518 + ... + 771533.

Almost surely, 2^1553379408 is an apocalyptic number.

1553379408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1553379408 is an abundant number, since it is smaller than the sum of its proper divisors (3414972240).

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

1553379408 is a wasteful number, since it uses less digits than its factorization.

1553379408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541072 (or 1541063 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 1553379408 is about 39412.9345266246. The cubic root of 1553379408 is about 1158.1349856515.

The spelling of 1553379408 in words is "one billion, five hundred fifty-three million, three hundred seventy-nine thousand, four hundred eight".