237420401 has 4 divisors (see below), whose sum is σ = 239868132. Its totient is φ = 234972672.

The previous prime is 237420383. The next prime is 237420431. The reversal of 237420401 is 104024732.

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 160402225 + 77018176 = 12665^2 + 8776^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-237420401 is a prime.

It is a super-2 number, since 2×237420401² = 112736893622001602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (237420431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1223720 + ... + 1223913.

It is an arithmetic number, because the mean of its divisors is an integer number (59967033).

Almost surely, 2^237420401 is an apocalyptic number.

It is an amenable number.

237420401 is a deficient number, since it is larger than the sum of its proper divisors (2447731).

237420401 is an equidigital number, since it uses as much as digits as its factorization.

237420401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2447730.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 237420401 is about 15408.4522584197. The cubic root of 237420401 is about 619.2119722965.

The spelling of 237420401 in words is "two hundred thirty-seven million, four hundred twenty thousand, four hundred one".