2661432402 has 8 divisors (see below), whose sum is σ = 5322864816. Its totient is φ = 887144132.

The previous prime is 2661432289. The next prime is 2661432409. The reversal of 2661432402 is 2042341662.

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

2661432402 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 2661432402.

It is not an unprimeable number, because it can be changed into a prime (2661432409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221786028 + ... + 221786039.

It is an arithmetic number, because the mean of its divisors is an integer number (665358102).

Almost surely, 2^2661432402 is an apocalyptic number.

2661432402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2661432402 is a wasteful number, since it uses less digits than its factorization.

2661432402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443572072.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 2661432402 is about 51589.0725057158. The cubic root of 2661432402 is about 1385.8146453112.

The spelling of 2661432402 in words is "two billion, six hundred sixty-one million, four hundred thirty-two thousand, four hundred two".