140478540 has 24 divisors (see below), whose sum is σ = 393340080. Its totient is φ = 37460928.

The previous prime is 140478539. The next prime is 140478551. The reversal of 140478540 is 45874041.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1170595 + ... + 1170714.

It is an arithmetic number, because the mean of its divisors is an integer number (16389170).

Almost surely, 2^140478540 is an apocalyptic number.

140478540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140478540 is an abundant number, since it is smaller than the sum of its proper divisors (252861540).

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

140478540 is a wasteful number, since it uses less digits than its factorization.

140478540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341321 (or 2341319 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 140478540 is about 11852.3643210964. The cubic root of 140478540 is about 519.8403602659.

The spelling of 140478540 in words is "one hundred forty million, four hundred seventy-eight thousand, five hundred forty".