1601429172 has 72 divisors (see below), whose sum is σ = 4602455424. Its totient is φ = 430633728.

The previous prime is 1601429161. The next prime is 1601429173. The reversal of 1601429172 is 2719241061.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601429173) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70108 + ... + 90099.

It is an arithmetic number, because the mean of its divisors is an integer number (63922992).

Almost surely, 2^1601429172 is an apocalyptic number.

1601429172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1601429172 is an abundant number, since it is smaller than the sum of its proper divisors (3001026252).

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

1601429172 is a wasteful number, since it uses less digits than its factorization.

1601429172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160245 (or 160236 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 1601429172 is about 40017.8606624592. The cubic root of 1601429172 is about 1169.9552353390.

The spelling of 1601429172 in words is "one billion, six hundred one million, four hundred twenty-nine thousand, one hundred seventy-two".