1403172040 has 64 divisors (see below), whose sum is σ = 3467836800. Its totient is φ = 508603392.

The previous prime is 1403171929. The next prime is 1403172041. The reversal of 1403172040 is 402713041.

It is not an unprimeable number, because it can be changed into a prime (1403172041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22657 + ... + 57616.

It is an arithmetic number, because the mean of its divisors is an integer number (54184950).

Almost surely, 2^1403172040 is an apocalyptic number.

1403172040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1403172040 is an abundant number, since it is smaller than the sum of its proper divisors (2064664760).

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

1403172040 is a wasteful number, since it uses less digits than its factorization.

1403172040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80326 (or 80322 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 1403172040 is about 37458.9380522193. The cubic root of 1403172040 is about 1119.5331919443.

Adding to 1403172040 its reverse (402713041), we get a palindrome (1805885081).

The spelling of 1403172040 in words is "one billion, four hundred three million, one hundred seventy-two thousand, forty".