1901178272 has 96 divisors (see below), whose sum is σ = 4576860288. Its totient is φ = 758808576.

The previous prime is 1901178269. The next prime is 1901178287. The reversal of 1901178272 is 2728711091.

It is a super-2 number, since 2×1901178272² = 7228957643849811968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 366803 + ... + 371949.

It is an arithmetic number, because the mean of its divisors is an integer number (47675628).

Almost surely, 2^1901178272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1901178272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2288430144).

1901178272 is an abundant number, since it is smaller than the sum of its proper divisors (2675682016).

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

1901178272 is a wasteful number, since it uses less digits than its factorization.

1901178272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5278 (or 5270 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 38.

The square root of 1901178272 is about 43602.5030474169. The cubic root of 1901178272 is about 1238.8183053750.

The spelling of 1901178272 in words is "one billion, nine hundred one million, one hundred seventy-eight thousand, two hundred seventy-two".