1400319998 has 16 divisors (see below), whose sum is σ = 2618780544. Its totient is φ = 545579160.

The previous prime is 1400319959. The next prime is 1400320001. The reversal of 1400319998 is 8999130041.

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, 4546340 + ... + 4546647.

It is an arithmetic number, because the mean of its divisors is an integer number (163673784).

Almost surely, 2^1400319998 is an apocalyptic number.

1400319998 is a deficient number, since it is larger than the sum of its proper divisors (1218460546).

1400319998 is a wasteful number, since it uses less digits than its factorization.

1400319998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9093007.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 1400319998 is about 37420.8497765617. The cubic root of 1400319998 is about 1118.7741684988.

The spelling of 1400319998 in words is "one billion, four hundred million, three hundred nineteen thousand, nine hundred ninety-eight".