1380156402 has 8 divisors (see below), whose sum is σ = 2760312816. Its totient is φ = 460052132.

The previous prime is 1380156359. The next prime is 1380156403. The reversal of 1380156402 is 2046510831.

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

1380156402 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1380156402.

It is not an unprimeable number, because it can be changed into a prime (1380156403) 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, 115013028 + ... + 115013039.

It is an arithmetic number, because the mean of its divisors is an integer number (345039102).

Almost surely, 2^1380156402 is an apocalyptic number.

1380156402 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.

1380156402 is a wasteful number, since it uses less digits than its factorization.

1380156402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230026072.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 1380156402 is about 37150.4562825277. The cubic root of 1380156402 is about 1113.3783398406.

The spelling of 1380156402 in words is "one billion, three hundred eighty million, one hundred fifty-six thousand, four hundred two".