1420427357 has 8 divisors (see below), whose sum is σ = 1454736696. Its totient is φ = 1386519552.

The previous prime is 1420427341. The next prime is 1420427363. The reversal of 1420427357 is 7537240241.

It can be written as a sum of positive squares in 4 ways, for example, as 592484281 + 827943076 = 24341^2 + 28774^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1420427357 - 2⁴ = 1420427341 is a prime.

It is a super-2 number, since 2×1420427357² = 4035227753028010898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420427377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93218 + ... + 107379.

It is an arithmetic number, because the mean of its divisors is an integer number (181842087).

Almost surely, 2^1420427357 is an apocalyptic number.

It is an amenable number.

1420427357 is a deficient number, since it is larger than the sum of its proper divisors (34309339).

1420427357 is an equidigital number, since it uses as much as digits as its factorization.

1420427357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200767.

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 1420427357 is about 37688.5573748850. The cubic root of 1420427357 is about 1124.1036104322.

Adding to 1420427357 its reverse (7537240241), we get a palindrome (8957667598).

The spelling of 1420427357 in words is "one billion, four hundred twenty million, four hundred twenty-seven thousand, three hundred fifty-seven".