1540072299 has 16 divisors (see below), whose sum is σ = 2104873344. Its totient is φ = 1001025600.

The previous prime is 1540072297. The next prime is 1540072333. The reversal of 1540072299 is 9922700451.

It is not a de Polignac number, because 1540072299 - 2¹ = 1540072297 is a prime.

It is a super-2 number, since 2×1540072299² = 4743645372294290802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1540072291) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 253204 + ... + 259214.

It is an arithmetic number, because the mean of its divisors is an integer number (131554584).

Almost surely, 2^1540072299 is an apocalyptic number.

1540072299 is a deficient number, since it is larger than the sum of its proper divisors (564801045).

1540072299 is a wasteful number, since it uses less digits than its factorization.

1540072299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8138.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 1540072299 is about 39243.7549044431. The cubic root of 1540072299 is about 1154.8184216344.

The spelling of 1540072299 in words is "one billion, five hundred forty million, seventy-two thousand, two hundred ninety-nine".