2872428156 has 144 divisors (see below), whose sum is σ = 8191432704. Its totient is φ = 874846656.

The previous prime is 2872428127. The next prime is 2872428211. The reversal of 2872428156 is 6518242782.

2872428156 is a `hidden beast` number, since 2 + 8 + 72 + 428 + 156 = 666.

It is a super-2 number, since 2×2872428156² = 16501687022763120672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1300405 + ... + 1302611.

Almost surely, 2^2872428156 is an apocalyptic number.

2872428156 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2872428156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4095716352).

2872428156 is an abundant number, since it is smaller than the sum of its proper divisors (5319004548).

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

2872428156 is a wasteful number, since it uses less digits than its factorization.

2872428156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2342 (or 2328 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 2872428156 is about 53595.0385390290. The cubic root of 2872428156 is about 1421.5093644631.

The spelling of 2872428156 in words is "two billion, eight hundred seventy-two million, four hundred twenty-eight thousand, one hundred fifty-six".