4262640 has 40 divisors (see below), whose sum is σ = 13214928. Its totient is φ = 1136640.

The previous prime is 4262639. The next prime is 4262653. The reversal of 4262640 is 462624.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 4262640.

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, 8641 + ... + 9120.

Almost surely, 2^4262640 is an apocalyptic number.

4262640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4262640 is an abundant number, since it is smaller than the sum of its proper divisors (8952288).

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

4262640 is a wasteful number, since it uses less digits than its factorization.

4262640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17777 (or 17771 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 4262640 is about 2064.6161870914. The cubic root of 4262640 is about 162.1410142392.

The spelling of 4262640 in words is "four million, two hundred sixty-two thousand, six hundred forty".