1540885470 has 16 divisors (see below), whose sum is σ = 3698125200. Its totient is φ = 410902784.

The previous prime is 1540885447. The next prime is 1540885471. The reversal of 1540885470 is 745880451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540885471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25681395 + ... + 25681454.

It is an arithmetic number, because the mean of its divisors is an integer number (231132825).

Almost surely, 2^1540885470 is an apocalyptic number.

1540885470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1540885470 is an abundant number, since it is smaller than the sum of its proper divisors (2157239730).

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

1540885470 is a wasteful number, since it uses less digits than its factorization.

1540885470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51362859.

The product of its (nonzero) digits is 179200, while the sum is 42.

The square root of 1540885470 is about 39254.1140519054. The cubic root of 1540885470 is about 1155.0216371202.

The spelling of 1540885470 in words is "one billion, five hundred forty million, eight hundred eighty-five thousand, four hundred seventy".