1403478140 has 24 divisors (see below), whose sum is σ = 2963777040. Its totient is φ = 558253568.

The previous prime is 1403478127. The next prime is 1403478203. The reversal of 1403478140 is 418743041.

It is a junction number, because it is equal to n+sod(n) for n = 1403478097 and 1403478106.

It is a congruent number.

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, 192437 + ... + 199596.

It is an arithmetic number, because the mean of its divisors is an integer number (123490710).

Almost surely, 2^1403478140 is an apocalyptic number.

1403478140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1403478140 is an abundant number, since it is smaller than the sum of its proper divisors (1560298900).

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

1403478140 is a wasteful number, since it uses less digits than its factorization.

1403478140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392221 (or 392219 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 1403478140 is about 37463.0236366474. The cubic root of 1403478140 is about 1119.6145942206.

The spelling of 1403478140 in words is "one billion, four hundred three million, four hundred seventy-eight thousand, one hundred forty".