1400202993 has 32 divisors (see below), whose sum is σ = 2232576000. Its totient is φ = 763209216.

The previous prime is 1400202971. The next prime is 1400203073. The reversal of 1400202993 is 3992020041.

It is not a de Polignac number, because 1400202993 - 2⁹ = 1400202481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1400202993.

It is not an unprimeable number, because it can be changed into a prime (1400202493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 179233 + ... + 186881.

It is an arithmetic number, because the mean of its divisors is an integer number (69768000).

Almost surely, 2^1400202993 is an apocalyptic number.

It is an amenable number.

1400202993 is a deficient number, since it is larger than the sum of its proper divisors (832373007).

1400202993 is a wasteful number, since it uses less digits than its factorization.

1400202993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8061.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 1400202993 is about 37419.2863774819. The cubic root of 1400202993 is about 1118.7430075695.

The spelling of 1400202993 in words is "one billion, four hundred million, two hundred two thousand, nine hundred ninety-three".