1421381874 has 16 divisors (see below), whose sum is σ = 3101196960. Its totient is φ = 430721760.

The previous prime is 1421381867. The next prime is 1421381881. The reversal of 1421381874 is 4781831241.

It is an interprime number because it is at equal distance from previous prime (1421381867) and next prime (1421381881).

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, 10767979 + ... + 10768110.

It is an arithmetic number, because the mean of its divisors is an integer number (193824810).

Almost surely, 2^1421381874 is an apocalyptic number.

1421381874 is an abundant number, since it is smaller than the sum of its proper divisors (1679815086).

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

1421381874 is a wasteful number, since it uses less digits than its factorization.

1421381874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21536105.

The product of its digits is 43008, while the sum is 39.

The square root of 1421381874 is about 37701.2184683731. The cubic root of 1421381874 is about 1124.3553505737.

The spelling of 1421381874 in words is "one billion, four hundred twenty-one million, three hundred eighty-one thousand, eight hundred seventy-four".