20167490 has 32 divisors (see below), whose sum is σ = 42505344. Its totient is φ = 6744960.

The previous prime is 20167471. The next prime is 20167517. The reversal of 20167490 is 9476102.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 644 + ... + 6383.

It is an arithmetic number, because the mean of its divisors is an integer number (1328292).

Almost surely, 2^20167490 is an apocalyptic number.

20167490 is an abundant number, since it is smaller than the sum of its proper divisors (22337854).

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

20167490 is a wasteful number, since it uses less digits than its factorization.

20167490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7082.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 20167490 is about 4490.8228644648. The cubic root of 20167490 is about 272.1973859211.

The spelling of 20167490 in words is "twenty million, one hundred sixty-seven thousand, four hundred ninety".