26425642 has 4 divisors (see below), whose sum is σ = 39638466. Its totient is φ = 13212820.

The previous prime is 26425601. The next prime is 26425657. The reversal of 26425642 is 24652462.

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

It can be written as a sum of positive squares in only one way, i.e., 26101881 + 323761 = 5109^2 + 569^2 .

It is a super-2 number, since 2×26425642² = 1396629110224328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6606409 + ... + 6606412.

Almost surely, 2^26425642 is an apocalyptic number.

26425642 is a deficient number, since it is larger than the sum of its proper divisors (13212824).

26425642 is a wasteful number, since it uses less digits than its factorization.

26425642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13212823.

The product of its digits is 23040, while the sum is 31.

The square root of 26425642 is about 5140.5877095912. The cubic root of 26425642 is about 297.8574833148.

The spelling of 26425642 in words is "twenty-six million, four hundred twenty-five thousand, six hundred forty-two".