64146492 has 60 divisors (see below), whose sum is σ = 173499480. Its totient is φ = 20641824.

The previous prime is 64146469. The next prime is 64146503. The reversal of 64146492 is 29464146.

64146492 is a `hidden beast` number, since 6 + 4 + 1 + 4 + 649 + 2 = 666.

64146492 is nontrivially palindromic in base 11.

It is a super-2 number, since 2×64146492² = 8229544871812128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5983 + ... + 12809.

It is an arithmetic number, because the mean of its divisors is an integer number (2891658).

Almost surely, 2^64146492 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 64146492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86749740).

64146492 is an abundant number, since it is smaller than the sum of its proper divisors (109352988).

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

64146492 is a wasteful number, since it uses less digits than its factorization.

64146492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6872 (or 6861 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 64146492 is about 8009.1505167527. The cubic root of 64146492 is about 400.3049591074.

The spelling of 64146492 in words is "sixty-four million, one hundred forty-six thousand, four hundred ninety-two".