2072156452 has 12 divisors (see below), whose sum is σ = 3839584140. Its totient is φ = 975132416.

The previous prime is 2072156431. The next prime is 2072156453. The reversal of 2072156452 is 2546512702.

It can be written as a sum of positive squares in 2 ways, for example, as 1813397056 + 258759396 = 42584^2 + 16086^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (2072156453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15236377 + ... + 15236512.

It is an arithmetic number, because the mean of its divisors is an integer number (319965345).

Almost surely, 2^2072156452 is an apocalyptic number.

It is an amenable number.

2072156452 is a deficient number, since it is larger than the sum of its proper divisors (1767427688).

2072156452 is a wasteful number, since it uses less digits than its factorization.

2072156452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30472910 (or 30472908 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 2072156452 is about 45520.9452010830. The cubic root of 2072156452 is about 1274.8943040922.

The spelling of 2072156452 in words is "two billion, seventy-two million, one hundred fifty-six thousand, four hundred fifty-two".