172420262 has 16 divisors (see below), whose sum is σ = 295799040. Its totient is φ = 73839048.

The previous prime is 172420253. The next prime is 172420271. The reversal of 172420262 is 262024271.

172420262 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (172420253) and next prime (172420271).

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, 18863 + ... + 26469.

It is an arithmetic number, because the mean of its divisors is an integer number (18487440).

Almost surely, 2^172420262 is an apocalyptic number.

172420262 is a deficient number, since it is larger than the sum of its proper divisors (123378778).

172420262 is a wasteful number, since it uses less digits than its factorization.

172420262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9235.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 172420262 is about 13130.8896119037. The cubic root of 172420262 is about 556.5823543927.

The spelling of 172420262 in words is "one hundred seventy-two million, four hundred twenty thousand, two hundred sixty-two".