20346032 has 40 divisors (see below), whose sum is σ = 45830400. Its totient is φ = 8569152.

The previous prime is 20346019. The next prime is 20346043. The reversal of 20346032 is 23064302.

It is a super-2 number, since 2×20346032² = 827922036290048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20345995 and 20346013.

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, 5069 + ... + 8147.

It is an arithmetic number, because the mean of its divisors is an integer number (1145760).

Almost surely, 2^20346032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20346032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22915200).

20346032 is an abundant number, since it is smaller than the sum of its proper divisors (25484368).

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

20346032 is a wasteful number, since it uses less digits than its factorization.

20346032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3153 (or 3147 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 20346032 is about 4510.6576017251. The cubic root of 20346032 is about 272.9982780643.

The spelling of 20346032 in words is "twenty million, three hundred forty-six thousand, thirty-two".