1421120490 has 16 divisors (see below), whose sum is σ = 3410689248. Its totient is φ = 378965456.

The previous prime is 1421120489. The next prime is 1421120513. The reversal of 1421120490 is 940211241.

It is a self number, because there is not a number n which added to its sum of digits gives 1421120490.

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, 23685312 + ... + 23685371.

It is an arithmetic number, because the mean of its divisors is an integer number (213168078).

Almost surely, 2^1421120490 is an apocalyptic number.

1421120490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1421120490 is an abundant number, since it is smaller than the sum of its proper divisors (1989568758).

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

1421120490 is a wasteful number, since it uses less digits than its factorization.

1421120490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47370693.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1421120490 is about 37697.7517897288. The cubic root of 1421120490 is about 1124.2864255083.

The spelling of 1421120490 in words is "one billion, four hundred twenty-one million, one hundred twenty thousand, four hundred ninety".