1329072402 has 16 divisors (see below), whose sum is σ = 3037879872. Its totient is φ = 379734960.

The previous prime is 1329072377. The next prime is 1329072403. The reversal of 1329072402 is 2042709231.

It is a self number, because there is not a number n which added to its sum of digits gives 1329072402.

It is not an unprimeable number, because it can be changed into a prime (1329072403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15822249 + ... + 15822332.

It is an arithmetic number, because the mean of its divisors is an integer number (189867492).

Almost surely, 2^1329072402 is an apocalyptic number.

1329072402 is an abundant number, since it is smaller than the sum of its proper divisors (1708807470).

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

1329072402 is a wasteful number, since it uses less digits than its factorization.

1329072402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31644593.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 1329072402 is about 36456.4452737784. The cubic root of 1329072402 is about 1099.4687247145.

The spelling of 1329072402 in words is "one billion, three hundred twenty-nine million, seventy-two thousand, four hundred two".