64407462 has 48 divisors (see below), whose sum is σ = 151949232. Its totient is φ = 18144000.

The previous prime is 64407461. The next prime is 64407481. The reversal of 64407462 is 26470446.

It is a super-2 number, since 2×64407462² = 8296642322562888, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64407461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19962 + ... + 22962.

It is an arithmetic number, because the mean of its divisors is an integer number (3165609).

Almost surely, 2^64407462 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64407462, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75974616).

64407462 is an abundant number, since it is smaller than the sum of its proper divisors (87541770).

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

64407462 is a wasteful number, since it uses less digits than its factorization.

64407462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3093 (or 3086 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 64407462 is about 8025.4259700031. The cubic root of 64407462 is about 400.8470840220.

The spelling of 64407462 in words is "sixty-four million, four hundred seven thousand, four hundred sixty-two".