1540450736 has 20 divisors (see below), whose sum is σ = 3255953064. Its totient is φ = 700204800.

The previous prime is 1540450697. The next prime is 1540450757. The reversal of 1540450736 is 6370540451.

It is a junction number, because it is equal to n+sod(n) for n = 1540450696 and 1540450705.

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, 4376105 + ... + 4376456.

Almost surely, 2^1540450736 is an apocalyptic number.

1540450736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1540450736 is an abundant number, since it is smaller than the sum of its proper divisors (1715502328).

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

1540450736 is a wasteful number, since it uses less digits than its factorization.

1540450736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8752580 (or 8752574 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 1540450736 is about 39248.5762289538. The cubic root of 1540450736 is about 1154.9130038234.

The spelling of 1540450736 in words is "one billion, five hundred forty million, four hundred fifty thousand, seven hundred thirty-six".