1399301436 has 192 divisors, whose sum is σ = 3884625920. Its totient is φ = 388177920.

The previous prime is 1399301429. The next prime is 1399301459. The reversal of 1399301436 is 6341039931.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 1399301394 and 1399301403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8912670 + ... + 8912826.

Almost surely, 2^1399301436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1399301436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1942312960).

1399301436 is an abundant number, since it is smaller than the sum of its proper divisors (2485324484).

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

1399301436 is a wasteful number, since it uses less digits than its factorization.

1399301436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 322 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 39.

The square root of 1399301436 is about 37407.2377488635. The cubic root of 1399301436 is about 1118.5028454535.

The spelling of 1399301436 in words is "one billion, three hundred ninety-nine million, three hundred one thousand, four hundred thirty-six".