1421744760 has 48 divisors (see below), whose sum is σ = 4620671640. Its totient is φ = 379131840.

The previous prime is 1421744719. The next prime is 1421744789. The reversal of 1421744760 is 674471241.

It is a happy number.

1421744760 is a `hidden beast` number, since 14 + 2 + 174 + 476 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1974286 + ... + 1975005.

Almost surely, 2^1421744760 is an apocalyptic number.

1421744760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421744760 is an abundant number, since it is smaller than the sum of its proper divisors (3198926880).

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

1421744760 is a wasteful number, since it uses less digits than its factorization.

1421744760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3949308 (or 3949301 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 1421744760 is about 37706.0308173640. The cubic root of 1421744760 is about 1124.4510269727.

The spelling of 1421744760 in words is "one billion, four hundred twenty-one million, seven hundred forty-four thousand, seven hundred sixty".