169249942 has 16 divisors (see below), whose sum is σ = 260021664. Its totient is φ = 82600000.

The previous prime is 169249921. The next prime is 169249963. The reversal of 169249942 is 249942961.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (169249921) and next prime (169249963).

It is a junction number, because it is equal to n+sod(n) for n = 169249892 and 169249901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8442 + ... + 20242.

It is an arithmetic number, because the mean of its divisors is an integer number (16251354).

Almost surely, 2^169249942 is an apocalyptic number.

169249942 is a deficient number, since it is larger than the sum of its proper divisors (90771722).

169249942 is a wasteful number, since it uses less digits than its factorization.

169249942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11975.

The product of its digits is 279936, while the sum is 46.

The square root of 169249942 is about 13009.6096021364. The cubic root of 169249942 is about 553.1499058955.

It can be divided in two parts, 16924994 and 2, that added together give a square (16924996 = 4114²).

The spelling of 169249942 in words is "one hundred sixty-nine million, two hundred forty-nine thousand, nine hundred forty-two".