1902737172 has 48 divisors (see below), whose sum is σ = 5372438400. Its totient is φ = 511660032.

The previous prime is 1902737171. The next prime is 1902737201. The reversal of 1902737172 is 2717372091.

It is a self number, because there is not a number n which added to its sum of digits gives 1902737172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1902737171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 664797 + ... + 667652.

It is an arithmetic number, because the mean of its divisors is an integer number (111925800).

Almost surely, 2^1902737172 is an apocalyptic number.

1902737172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1902737172 is an abundant number, since it is smaller than the sum of its proper divisors (3469701228).

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

1902737172 is a wasteful number, since it uses less digits than its factorization.

1902737172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332480 (or 1332478 counting only the distinct ones).

The product of its (nonzero) digits is 37044, while the sum is 39.

The square root of 1902737172 is about 43620.3756517525. The cubic root of 1902737172 is about 1239.1568088333.

The spelling of 1902737172 in words is "one billion, nine hundred two million, seven hundred thirty-seven thousand, one hundred seventy-two".