1402221398 has 16 divisors (see below), whose sum is σ = 2188453680. Its totient is φ = 673016736.

The previous prime is 1402221397. The next prime is 1402221467. The reversal of 1402221398 is 8931222041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402221397) 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, 59840 + ... + 79907.

It is an arithmetic number, because the mean of its divisors is an integer number (136778355).

Almost surely, 2^1402221398 is an apocalyptic number.

1402221398 is a deficient number, since it is larger than the sum of its proper divisors (786232282).

1402221398 is a wasteful number, since it uses less digits than its factorization.

1402221398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139951.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 1402221398 is about 37446.2467812196. The cubic root of 1402221398 is about 1119.2803087911.

The spelling of 1402221398 in words is "one billion, four hundred two million, two hundred twenty-one thousand, three hundred ninety-eight".