222450739 has 24 divisors (see below), whose sum is σ = 268697088. Its totient is φ = 183491280.

The previous prime is 222450731. The next prime is 222450743. The reversal of 222450739 is 937054222.

It is a happy number.

It is not a de Polignac number, because 222450739 - 2³ = 222450731 is a prime.

It is a super-2 number, since 2×222450739² = 98968662563292242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222450731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148854 + ... + 150340.

It is an arithmetic number, because the mean of its divisors is an integer number (11195712).

Almost surely, 2^222450739 is an apocalyptic number.

222450739 is a deficient number, since it is larger than the sum of its proper divisors (46246349).

222450739 is a wasteful number, since it uses less digits than its factorization.

222450739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615 (or 1608 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 222450739 is about 14914.7825662998. The cubic root of 222450739 is about 605.9144144219.

The spelling of 222450739 in words is "two hundred twenty-two million, four hundred fifty thousand, seven hundred thirty-nine".