1421988470 has 32 divisors (see below), whose sum is σ = 2927916288. Its totient is φ = 487091808.

The previous prime is 1421988461. The next prime is 1421988473. The reversal of 1421988470 is 748891241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421988473) 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, 72677 + ... + 90143.

It is an arithmetic number, because the mean of its divisors is an integer number (91497384).

Almost surely, 2^1421988470 is an apocalyptic number.

1421988470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1421988470 is an abundant number, since it is smaller than the sum of its proper divisors (1505927818).

1421988470 is a wasteful number, since it uses less digits than its factorization.

1421988470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18644.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 1421988470 is about 37709.2623900283. The cubic root of 1421988470 is about 1124.5152729871.

The spelling of 1421988470 in words is "one billion, four hundred twenty-one million, nine hundred eighty-eight thousand, four hundred seventy".