2797459440 has 40 divisors (see below), whose sum is σ = 8672125008. Its totient is φ = 745989120.

The previous prime is 2797459439. The next prime is 2797459459. The reversal of 2797459440 is 449547972.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×2797459440² = 15651558636890227200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5827801 + ... + 5828280.

Almost surely, 2^2797459440 is an apocalyptic number.

2797459440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2797459440 is an abundant number, since it is smaller than the sum of its proper divisors (5874665568).

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

2797459440 is a wasteful number, since it uses less digits than its factorization.

2797459440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11656097 (or 11656091 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 51.

The square root of 2797459440 is about 52891.0147378550. The cubic root of 2797459440 is about 1409.0333296738.

The spelling of 2797459440 in words is "two billion, seven hundred ninety-seven million, four hundred fifty-nine thousand, four hundred forty".