2251378282 has 8 divisors (see below), whose sum is σ = 3391945056. Its totient is φ = 1120729932.

The previous prime is 2251378279. The next prime is 2251378291. The reversal of 2251378282 is 2828731522.

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

It is a super-2 number, since 2×2251378282² = 10137408337322543048, which contains 22 as substring.

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, 2479038 + ... + 2479945.

It is an arithmetic number, because the mean of its divisors is an integer number (423993132).

Almost surely, 2^2251378282 is an apocalyptic number.

2251378282 is a deficient number, since it is larger than the sum of its proper divisors (1140566774).

2251378282 is a wasteful number, since it uses less digits than its factorization.

2251378282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4959212.

The product of its digits is 107520, while the sum is 40.

The square root of 2251378282 is about 47448.6910462238. The cubic root of 2251378282 is about 1310.6382069846.

The spelling of 2251378282 in words is "two billion, two hundred fifty-one million, three hundred seventy-eight thousand, two hundred eighty-two".