1540272842 has 8 divisors (see below), whose sum is σ = 2312959296. Its totient is φ = 769286412.

The previous prime is 1540272827. The next prime is 1540272847. The reversal of 1540272842 is 2482720451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1540272847) 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, 422738 + ... + 426365.

It is an arithmetic number, because the mean of its divisors is an integer number (289119912).

Almost surely, 2^1540272842 is an apocalyptic number.

1540272842 is a deficient number, since it is larger than the sum of its proper divisors (772686454).

1540272842 is an equidigital number, since it uses as much as digits as its factorization.

1540272842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850012.

The product of its (nonzero) digits is 35840, while the sum is 35.

The square root of 1540272842 is about 39246.3099157105. The cubic root of 1540272842 is about 1154.8685449737.

The spelling of 1540272842 in words is "one billion, five hundred forty million, two hundred seventy-two thousand, eight hundred forty-two".