1554414804 has 18 divisors (see below), whose sum is σ = 3929215290. Its totient is φ = 518138256.

The previous prime is 1554414751. The next prime is 1554414809. The reversal of 1554414804 is 4084144551.

It can be written as a sum of positive squares in only one way, i.e., 1535072400 + 19342404 = 39180^2 + 4398^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 43178189 = 1554414804 / (1 + 5 + 5 + 4 + 4 + 1 + 4 + 8 + 0 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1554414809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21589059 + ... + 21589130.

Almost surely, 2^1554414804 is an apocalyptic number.

It is an amenable number.

1554414804 is an abundant number, since it is smaller than the sum of its proper divisors (2374800486).

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

1554414804 is a wasteful number, since it uses less digits than its factorization.

1554414804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43178199 (or 43178194 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The square root of 1554414804 is about 39426.0675695662. The cubic root of 1554414804 is about 1158.3922445456.

The spelling of 1554414804 in words is "one billion, five hundred fifty-four million, four hundred fourteen thousand, eight hundred four".