2261470978 has 8 divisors (see below), whose sum is σ = 3653145468. Its totient is φ = 1043755824.

The previous prime is 2261470961. The next prime is 2261470993. The reversal of 2261470978 is 8790741622.

It can be written as a sum of positive squares in 2 ways, for example, as 1948074769 + 313396209 = 44137^2 + 17703^2 .

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

It is a super-2 number, since 2×2261470978² = 10228501968672552968, 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, 43489801 + ... + 43489852.

Almost surely, 2^2261470978 is an apocalyptic number.

2261470978 is a deficient number, since it is larger than the sum of its proper divisors (1391674490).

2261470978 is a wasteful number, since it uses less digits than its factorization.

2261470978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86979668.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 2261470978 is about 47554.9259067870. The cubic root of 2261470978 is about 1312.5937728678.

The spelling of 2261470978 in words is "two billion, two hundred sixty-one million, four hundred seventy thousand, nine hundred seventy-eight".