2897399540 has 24 divisors (see below), whose sum is σ = 6953759232. Its totient is φ = 993394080.

The previous prime is 2897399537. The next prime is 2897399543. The reversal of 2897399540 is 459937982.

It is an interprime number because it is at equal distance from previous prime (2897399537) and next prime (2897399543).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2897399543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10347716 + ... + 10347995.

It is an arithmetic number, because the mean of its divisors is an integer number (289739968).

Almost surely, 2^2897399540 is an apocalyptic number.

2897399540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2897399540 is an abundant number, since it is smaller than the sum of its proper divisors (4056359692).

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

2897399540 is a wasteful number, since it uses less digits than its factorization.

2897399540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20695727 (or 20695725 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 56.

The square root of 2897399540 is about 53827.4979912684. The cubic root of 2897399540 is about 1425.6167704575.

The spelling of 2897399540 in words is "two billion, eight hundred ninety-seven million, three hundred ninety-nine thousand, five hundred forty".