1401171672 has 16 divisors (see below), whose sum is σ = 3502929240. Its totient is φ = 467057216.

The previous prime is 1401171643. The next prime is 1401171683. The reversal of 1401171672 is 2761711041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29191053 + ... + 29191100.

Almost surely, 2^1401171672 is an apocalyptic number.

1401171672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1401171672 is an abundant number, since it is smaller than the sum of its proper divisors (2101757568).

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

1401171672 is a wasteful number, since it uses less digits than its factorization.

1401171672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58382162 (or 58382158 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 30.

The square root of 1401171672 is about 37432.2277189055. The cubic root of 1401171672 is about 1119.0009351825. Note that the first 3 decimals are identical.

The spelling of 1401171672 in words is "one billion, four hundred one million, one hundred seventy-one thousand, six hundred seventy-two".