2902123894 has 8 divisors (see below), whose sum is σ = 4418158968. Its totient is φ = 1429404240.

The previous prime is 2902123867. The next prime is 2902123909. The reversal of 2902123894 is 4983212092.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2902123894² = 16844646192251446472, 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 3 ways as a sum of consecutive naturals, for example, 10828687 + ... + 10828954.

It is an arithmetic number, because the mean of its divisors is an integer number (552269871).

Almost surely, 2^2902123894 is an apocalyptic number.

2902123894 is a deficient number, since it is larger than the sum of its proper divisors (1516035074).

2902123894 is a wasteful number, since it uses less digits than its factorization.

2902123894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21657710.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 2902123894 is about 53871.3643228014. The cubic root of 2902123894 is about 1426.3911960373.

The spelling of 2902123894 in words is "two billion, nine hundred two million, one hundred twenty-three thousand, eight hundred ninety-four".