1401992790 has 32 divisors (see below), whose sum is σ = 3670672896. Its totient is φ = 339876960.

The previous prime is 1401992783. The next prime is 1401992797. The reversal of 1401992790 is 972991041.

It is an interprime number because it is at equal distance from previous prime (1401992783) and next prime (1401992797).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401992797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2123902 + ... + 2124561.

It is an arithmetic number, because the mean of its divisors is an integer number (114708528).

Almost surely, 2^1401992790 is an apocalyptic number.

1401992790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1401992790 is an abundant number, since it is smaller than the sum of its proper divisors (2268680106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1401992790 is a wasteful number, since it uses less digits than its factorization.

1401992790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4248484.

The product of its (nonzero) digits is 40824, while the sum is 42.

The square root of 1401992790 is about 37443.1941746427. The cubic root of 1401992790 is about 1119.2194790391.

The spelling of 1401992790 in words is "one billion, four hundred one million, nine hundred ninety-two thousand, seven hundred ninety".