1545234420 has 48 divisors (see below), whose sum is σ = 4328932608. Its totient is φ = 411845760.

The previous prime is 1545234419. The next prime is 1545234469. The reversal of 1545234420 is 244325451.

1545234420 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 131590 + ... + 142850.

It is an arithmetic number, because the mean of its divisors is an integer number (90186096).

Almost surely, 2^1545234420 is an apocalyptic number.

1545234420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1545234420 is an abundant number, since it is smaller than the sum of its proper divisors (2783698188).

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

1545234420 is a wasteful number, since it uses less digits than its factorization.

1545234420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13560 (or 13558 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 1545234420 is about 39309.4698514238. The cubic root of 1545234420 is about 1156.1072495012.

Adding to 1545234420 its reverse (244325451), we get a palindrome (1789559871).

The spelling of 1545234420 in words is "one billion, five hundred forty-five million, two hundred thirty-four thousand, four hundred twenty".