10220742 has 40 divisors (see below), whose sum is σ = 26176656. Its totient is φ = 2919888.

The previous prime is 10220729. The next prime is 10220753. The reversal of 10220742 is 24702201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3373 + ... + 5640.

Almost surely, 2^10220742 is an apocalyptic number.

10220742 is an abundant number, since it is smaller than the sum of its proper divisors (15955914).

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

10220742 is an equidigital number, since it uses as much as digits as its factorization.

10220742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9034 (or 9025 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 10220742 is about 3196.9895214092. The cubic root of 10220742 is about 217.0171930285.

Adding to 10220742 its reverse (24702201), we get a palindrome (34922943).

The spelling of 10220742 in words is "ten million, two hundred twenty thousand, seven hundred forty-two".