1420288190 has 16 divisors (see below), whose sum is σ = 2691072720. Its totient is φ = 538214400.

The previous prime is 1420288187. The next prime is 1420288211. The reversal of 1420288190 is 918820241.

It is a super-2 number, since 2×1420288190² = 4034437085306952200, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1420288190.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3737411 + ... + 3737790.

It is an arithmetic number, because the mean of its divisors is an integer number (168192045).

Almost surely, 2^1420288190 is an apocalyptic number.

1420288190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1420288190 is a deficient number, since it is larger than the sum of its proper divisors (1270784530).

1420288190 is a wasteful number, since it uses less digits than its factorization.

1420288190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7475227.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 1420288190 is about 37686.7110531020. The cubic root of 1420288190 is about 1124.0668977166.

The spelling of 1420288190 in words is "one billion, four hundred twenty million, two hundred eighty-eight thousand, one hundred ninety".