1421745696 has 240 divisors, whose sum is σ = 4824078336. Its totient is φ = 402361344.

The previous prime is 1421745691. The next prime is 1421745707. The reversal of 1421745696 is 6965471241.

1421745696 is a `hidden beast` number, since 14 + 2 + 1 + 74 + 569 + 6 = 666.

Its product of digits (362880) is a multiple of the sum of its prime divisors (756).

It is not an unprimeable number, because it can be changed into a prime (1421745691) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2303980 + ... + 2304596.

Almost surely, 2^1421745696 is an apocalyptic number.

1421745696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421745696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2412039168).

1421745696 is an abundant number, since it is smaller than the sum of its proper divisors (3402332640).

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

1421745696 is a wasteful number, since it uses less digits than its factorization.

1421745696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773 (or 756 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 1421745696 is about 37706.0432291695. The cubic root of 1421745696 is about 1124.4512737319.

The spelling of 1421745696 in words is "one billion, four hundred twenty-one million, seven hundred forty-five thousand, six hundred ninety-six".