2897263488 has 512 divisors, whose sum is σ = 10152345600. Its totient is φ = 712212480.

The previous prime is 2897263451. The next prime is 2897263489. The reversal of 2897263488 is 8843627982.

It is a happy number.

It is a super-2 number, since 2×2897263488² = 16788271437795852288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2897263489) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 40806493 + ... + 40806563.

It is an arithmetic number, because the mean of its divisors is an integer number (19828800).

Almost surely, 2^2897263488 is an apocalyptic number.

2897263488 is a gapful number since it is divisible by the number (28) 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 2897263488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5076172800).

2897263488 is an abundant number, since it is smaller than the sum of its proper divisors (7255082112).

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

2897263488 is a wasteful number, since it uses less digits than its factorization.

2897263488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 166 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 57.

The square root of 2897263488 is about 53826.2341985764. The cubic root of 2897263488 is about 1425.5944560745.

The spelling of 2897263488 in words is "two billion, eight hundred ninety-seven million, two hundred sixty-three thousand, four hundred eighty-eight".