2345629978 has 16 divisors (see below), whose sum is σ = 3730129704. Its totient is φ = 1102428160.

The previous prime is 2345629963. The next prime is 2345630003. The reversal of 2345629978 is 8799265432.

It can be written as a sum of positive squares in 4 ways, for example, as 2030673969 + 314956009 = 45063^2 + 17747^2 .

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, 16183 + ... + 70378.

Almost surely, 2^2345629978 is an apocalyptic number.

2345629978 is a deficient number, since it is larger than the sum of its proper divisors (1384499726).

2345629978 is a wasteful number, since it uses less digits than its factorization.

2345629978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87377.

The product of its digits is 6531840, while the sum is 55.

The square root of 2345629978 is about 48431.7042648718. The cubic root of 2345629978 is about 1328.6782765121.

The spelling of 2345629978 in words is "two billion, three hundred forty-five million, six hundred twenty-nine thousand, nine hundred seventy-eight".