2301531978 has 64 divisors (see below), whose sum is σ = 5143357440. Its totient is φ = 682313472.

The previous prime is 2301531937. The next prime is 2301532019. The reversal of 2301531978 is 8791351032.

It is an interprime number because it is at equal distance from previous prime (2301531937) and next prime (2301532019).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 903775 + ... + 906317.

It is an arithmetic number, because the mean of its divisors is an integer number (80364960).

Almost surely, 2^2301531978 is an apocalyptic number.

2301531978 is an abundant number, since it is smaller than the sum of its proper divisors (2841825462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2301531978 is a wasteful number, since it uses less digits than its factorization.

2301531978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3051.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 2301531978 is about 47974.2845491207. The cubic root of 2301531978 is about 1320.2991321610.

The spelling of 2301531978 in words is "two billion, three hundred one million, five hundred thirty-one thousand, nine hundred seventy-eight".