1398944077 has 8 divisors (see below), whose sum is σ = 1412921664. Its totient is φ = 1385032608.

The previous prime is 1398944039. The next prime is 1398944101. The reversal of 1398944077 is 7704498931.

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

It is a cyclic number.

It is not a de Polignac number, because 1398944077 - 2²⁷ = 1264726349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398944177) 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, 26553 + ... + 59185.

It is an arithmetic number, because the mean of its divisors is an integer number (176615208).

Almost surely, 2^1398944077 is an apocalyptic number.

It is an amenable number.

1398944077 is a deficient number, since it is larger than the sum of its proper divisors (13977587).

1398944077 is a wasteful number, since it uses less digits than its factorization.

1398944077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33059.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The square root of 1398944077 is about 37402.4608415008. The cubic root of 1398944077 is about 1118.4076214894.

The spelling of 1398944077 in words is "one billion, three hundred ninety-eight million, nine hundred forty-four thousand, seventy-seven".