1426573720 has 128 divisors (see below), whose sum is σ = 3786108480. Its totient is φ = 476928000.

The previous prime is 1426573711. The next prime is 1426573741. The reversal of 1426573720 is 273756241.

It is a happy number.

It is a super-2 number, since 2×1426573720² = 4070225157189276800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1426573720.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2636650 + ... + 2637190.

Almost surely, 2^1426573720 is an apocalyptic number.

1426573720 is a gapful number since it is divisible by the number (10) 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 1426573720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1893054240).

1426573720 is an abundant number, since it is smaller than the sum of its proper divisors (2359534760).

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

1426573720 is a wasteful number, since it uses less digits than its factorization.

1426573720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037 (or 1033 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 1426573720 is about 37770.0108551745. The cubic root of 1426573720 is about 1125.7226553662.

The spelling of 1426573720 in words is "one billion, four hundred twenty-six million, five hundred seventy-three thousand, seven hundred twenty".