426743501 has 4 divisors (see below), whose sum is σ = 427259100. Its totient is φ = 426227904.

The previous prime is 426743479. The next prime is 426743507. The reversal of 426743501 is 105347624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 340439401 + 86304100 = 18451^2 + 9290^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426743501 is a prime.

It is a super-2 number, since 2×426743501² = 364220031291474002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426743507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256556 + ... + 258213.

It is an arithmetic number, because the mean of its divisors is an integer number (106814775).

Almost surely, 2^426743501 is an apocalyptic number.

It is an amenable number.

426743501 is a deficient number, since it is larger than the sum of its proper divisors (515599).

426743501 is an equidigital number, since it uses as much as digits as its factorization.

426743501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515598.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 426743501 is about 20657.7709591330. The cubic root of 426743501 is about 752.8740103149.

The spelling of 426743501 in words is "four hundred twenty-six million, seven hundred forty-three thousand, five hundred one".