264742040 has 16 divisors (see below), whose sum is σ = 595669680. Its totient is φ = 105896800.

The previous prime is 264742039. The next prime is 264742057. The reversal of 264742040 is 40247462.

It is a junction number, because it is equal to n+sod(n) for n = 264741994 and 264742012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3309236 + ... + 3309315.

It is an arithmetic number, because the mean of its divisors is an integer number (37229355).

Almost surely, 2^264742040 is an apocalyptic number.

264742040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264742040 is an abundant number, since it is smaller than the sum of its proper divisors (330927640).

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

264742040 is a wasteful number, since it uses less digits than its factorization.

264742040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6618562 (or 6618558 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 264742040 is about 16270.8954885710. The cubic root of 264742040 is about 642.1073438454.

The spelling of 264742040 in words is "two hundred sixty-four million, seven hundred forty-two thousand, forty".