1379400216 has 32 divisors (see below), whose sum is σ = 3454218240. Its totient is φ = 459037728.

The previous prime is 1379400199. The next prime is 1379400223. The reversal of 1379400216 is 6120049731.

1379400216 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32776 + ... + 61911.

It is an arithmetic number, because the mean of its divisors is an integer number (107944320).

Almost surely, 2^1379400216 is an apocalyptic number.

It is an amenable number.

1379400216 is an abundant number, since it is smaller than the sum of its proper divisors (2074818024).

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

1379400216 is a wasteful number, since it uses less digits than its factorization.

1379400216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95303 (or 95299 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 1379400216 is about 37140.2775433895. The cubic root of 1379400216 is about 1113.1749631505.

Adding to 1379400216 its reverse (6120049731), we get a palindrome (7499449947).

The spelling of 1379400216 in words is "one billion, three hundred seventy-nine million, four hundred thousand, two hundred sixteen".