1542828644 has 12 divisors (see below), whose sum is σ = 3085657344. Its totient is φ = 661212264.

The previous prime is 1542828629. The next prime is 1542828649. The reversal of 1542828644 is 4468282451.

1542828644 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1542828595 and 1542828604.

It is not an unprimeable number, because it can be changed into a prime (1542828649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27550484 + ... + 27550539.

It is an arithmetic number, because the mean of its divisors is an integer number (257138112).

Almost surely, 2^1542828644 is an apocalyptic number.

1542828644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1542828644 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1542828644 is a wasteful number, since it uses less digits than its factorization.

1542828644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55101034 (or 55101032 counting only the distinct ones).

The product of its digits is 491520, while the sum is 44.

The square root of 1542828644 is about 39278.8574681087. The cubic root of 1542828644 is about 1155.5069566031.

The spelling of 1542828644 in words is "one billion, five hundred forty-two million, eight hundred twenty-eight thousand, six hundred forty-four".