2391661932 has 96 divisors (see below), whose sum is σ = 6524146944. Its totient is φ = 673843200.

The previous prime is 2391661927. The next prime is 2391661963.

It is a happy number.

2391661932 is nontrivially palindromic in base 10.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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, 179832 + ... + 192672.

It is an arithmetic number, because the mean of its divisors is an integer number (67959864).

Almost surely, 2^2391661932 is an apocalyptic number.

2391661932 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2391661932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3262073472).

2391661932 is an abundant number, since it is smaller than the sum of its proper divisors (4132485012).

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

2391661932 is a wasteful number, since it uses less digits than its factorization.

2391661932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12959 (or 12957 counting only the distinct ones).

The product of its digits is 104976, while the sum is 42.

The square root of 2391661932 is about 48904.6207632776. The cubic root of 2391661932 is about 1337.3136073794.

The spelling of 2391661932 in words is "two billion, three hundred ninety-one million, six hundred sixty-one thousand, nine hundred thirty-two".