1540477456 has 20 divisors (see below), whose sum is σ = 3411057472. Its totient is φ = 660204576.

The previous prime is 1540477453. The next prime is 1540477511. The reversal of 1540477456 is 6547740451.

It is not an unprimeable number, because it can be changed into a prime (1540477453) 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, 6877020 + ... + 6877243.

Almost surely, 2^1540477456 is an apocalyptic number.

1540477456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1540477456 is an abundant number, since it is smaller than the sum of its proper divisors (1870580016).

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

1540477456 is a wasteful number, since it uses less digits than its factorization.

1540477456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13754278 (or 13754272 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 43.

The square root of 1540477456 is about 39248.9166219910. The cubic root of 1540477456 is about 1154.9196813272.

The spelling of 1540477456 in words is "one billion, five hundred forty million, four hundred seventy-seven thousand, four hundred fifty-six".