1554414840 has 128 divisors (see below), whose sum is σ = 5652460800. Its totient is φ = 376824960.

The previous prime is 1554414811. The next prime is 1554414863. The reversal of 1554414840 is 484144551.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1554414795 and 1554414804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53542 + ... + 77301.

It is an arithmetic number, because the mean of its divisors is an integer number (44159850).

Almost surely, 2^1554414840 is an apocalyptic number.

1554414840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1554414840 is an abundant number, since it is smaller than the sum of its proper divisors (4098045960).

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

1554414840 is a wasteful number, since it uses less digits than its factorization.

1554414840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130874 (or 130864 counting only the distinct ones).

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

The square root of 1554414840 is about 39426.0680261169. The cubic root of 1554414840 is about 1158.3922534884.

The spelling of 1554414840 in words is "one billion, five hundred fifty-four million, four hundred fourteen thousand, eight hundred forty".