1554069420 has 36 divisors (see below), whose sum is σ = 4714011120. Its totient is φ = 414418464.

The previous prime is 1554069403. The next prime is 1554069421. The reversal of 1554069420 is 249604551.

1554069420 is a `hidden beast` number, since 1 + 5 + 540 + 6 + 94 + 20 = 666.

1554069420 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is not an unprimeable number, because it can be changed into a prime (1554069421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4316680 + ... + 4317039.

Almost surely, 2^1554069420 is an apocalyptic number.

1554069420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1554069420 is an abundant number, since it is smaller than the sum of its proper divisors (3159941700).

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

1554069420 is a wasteful number, since it uses less digits than its factorization.

1554069420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8633734 (or 8633729 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 1554069420 is about 39421.6871785062. The cubic root of 1554069420 is about 1158.3064416693.

The spelling of 1554069420 in words is "one billion, five hundred fifty-four million, sixty-nine thousand, four hundred twenty".