2007155772 has 36 divisors (see below), whose sum is σ = 5248599720. Its totient is φ = 645980832.

The previous prime is 2007155771. The next prime is 2007155797. The reversal of 2007155772 is 2775517002.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2007155771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 960238 + ... + 962325.

Almost surely, 2^2007155772 is an apocalyptic number.

It is an amenable number.

2007155772 is an abundant number, since it is smaller than the sum of its proper divisors (3241443948).

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

2007155772 is a wasteful number, since it uses less digits than its factorization.

2007155772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1922602 (or 1922597 counting only the distinct ones).

The product of its (nonzero) digits is 34300, while the sum is 36.

The square root of 2007155772 is about 44801.2920795818. The cubic root of 2007155772 is about 1261.4218793451.

The spelling of 2007155772 in words is "two billion, seven million, one hundred fifty-five thousand, seven hundred seventy-two".