1421187970 has 16 divisors (see below), whose sum is σ = 2558730240. Its totient is φ = 568343664.

The previous prime is 1421187967. The next prime is 1421187997. The reversal of 1421187970 is 797811241.

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, 37309 + ... + 65071.

It is an arithmetic number, because the mean of its divisors is an integer number (159920640).

Almost surely, 2^1421187970 is an apocalyptic number.

1421187970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1421187970 is a deficient number, since it is larger than the sum of its proper divisors (1137542270).

1421187970 is a wasteful number, since it uses less digits than its factorization.

1421187970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32889.

The product of its (nonzero) digits is 28224, while the sum is 40.

The square root of 1421187970 is about 37698.6467926901. The cubic root of 1421187970 is about 1124.3042203042.

The spelling of 1421187970 in words is "one billion, four hundred twenty-one million, one hundred eighty-seven thousand, nine hundred seventy".