1542740072 has 16 divisors (see below), whose sum is σ = 3062793060. Its totient is φ = 725995264.

The previous prime is 1542740063. The next prime is 1542740107. The reversal of 1542740072 is 2700472451.

It can be written as a sum of positive squares in 2 ways, for example, as 1425364516 + 117375556 = 37754^2 + 10834^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5671703 + ... + 5671974.

Almost surely, 2^1542740072 is an apocalyptic number.

It is an amenable number.

1542740072 is a deficient number, since it is larger than the sum of its proper divisors (1520052988).

1542740072 is a wasteful number, since it uses less digits than its factorization.

1542740072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11343700 (or 11343696 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 1542740072 is about 39277.7299751399. The cubic root of 1542740072 is about 1155.4848440760.

The spelling of 1542740072 in words is "one billion, five hundred forty-two million, seven hundred forty thousand, seventy-two".