1398994022 has 16 divisors (see below), whose sum is σ = 2224862640. Its totient is φ = 657481728.

The previous prime is 1398993991. The next prime is 1398994031. The reversal of 1398994022 is 2204998931.

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, 608 + ... + 52899.

It is an arithmetic number, because the mean of its divisors is an integer number (139053915).

Almost surely, 2^1398994022 is an apocalyptic number.

1398994022 is a deficient number, since it is larger than the sum of its proper divisors (825868618).

1398994022 is a wasteful number, since it uses less digits than its factorization.

1398994022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54295.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 1398994022 is about 37403.1285055141. The cubic root of 1398994022 is about 1118.4209311003.

The spelling of 1398994022 in words is "one billion, three hundred ninety-eight million, nine hundred ninety-four thousand, twenty-two".