2902397945 has 16 divisors (see below), whose sum is σ = 3649421952. Its totient is φ = 2211728640.

The previous prime is 2902397933. The next prime is 2902397977. The reversal of 2902397945 is 5497932092.

It is not a de Polignac number, because 2902397945 - 2¹⁰ = 2902396921 is a prime.

It is a super-2 number, since 2×2902397945² = 16847827662280446050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2902397893 and 2902397902.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24647 + ... + 80076.

It is an arithmetic number, because the mean of its divisors is an integer number (228088872).

Almost surely, 2^2902397945 is an apocalyptic number.

It is an amenable number.

2902397945 is a deficient number, since it is larger than the sum of its proper divisors (747024007).

2902397945 is a wasteful number, since it uses less digits than its factorization.

2902397945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104992.

The product of its (nonzero) digits is 1224720, while the sum is 50.

The square root of 2902397945 is about 53873.9078311570. The cubic root of 2902397945 is about 1426.4360932280.

The spelling of 2902397945 in words is "two billion, nine hundred two million, three hundred ninety-seven thousand, nine hundred forty-five".