607406640 has 80 divisors (see below), whose sum is σ = 1899708768. Its totient is φ = 160534528.

The previous prime is 607406629. The next prime is 607406641. The reversal of 607406640 is 46604706.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (607406641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15922 + ... + 38318.

Almost surely, 2^607406640 is an apocalyptic number.

607406640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 607406640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (949854384).

607406640 is an abundant number, since it is smaller than the sum of its proper divisors (1292302128).

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

607406640 is a wasteful number, since it uses less digits than its factorization.

607406640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22526 (or 22520 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 607406640 is about 24645.6211120759. The cubic root of 607406640 is about 846.8890385240.

The spelling of 607406640 in words is "six hundred seven million, four hundred six thousand, six hundred forty".