1542752244 has 120 divisors (see below), whose sum is σ = 4658689728. Its totient is φ = 439983360.

The previous prime is 1542752221. The next prime is 1542752269. The reversal of 1542752244 is 4422572451.

1542752244 is a `hidden beast` number, since 1 + 5 + 427 + 5 + 224 + 4 = 666.

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 = 1542752199 and 1542752208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 47857 + ... + 73319.

Almost surely, 2^1542752244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1542752244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2329344864).

1542752244 is an abundant number, since it is smaller than the sum of its proper divisors (3115937484).

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

1542752244 is a wasteful number, since it uses less digits than its factorization.

1542752244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25507 (or 25496 counting only the distinct ones).

The product of its digits is 89600, while the sum is 36.

The square root of 1542752244 is about 39277.8849226890. The cubic root of 1542752244 is about 1155.4878829384.

The spelling of 1542752244 in words is "one billion, five hundred forty-two million, seven hundred fifty-two thousand, two hundred forty-four".