405272734 has 16 divisors (see below), whose sum is σ = 630723456. Its totient is φ = 195098400.

The previous prime is 405272731. The next prime is 405272753. The reversal of 405272734 is 437272504.

It is a self number, because there is not a number n which added to its sum of digits gives 405272734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405272731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4377 + ... + 28804.

It is an arithmetic number, because the mean of its divisors is an integer number (39420216).

Almost surely, 2^405272734 is an apocalyptic number.

405272734 is a deficient number, since it is larger than the sum of its proper divisors (225450722).

405272734 is a wasteful number, since it uses less digits than its factorization.

405272734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33411.

The product of its (nonzero) digits is 47040, while the sum is 34.

The square root of 405272734 is about 20131.3867877998. The cubic root of 405272734 is about 740.0296640166.

The spelling of 405272734 in words is "four hundred five million, two hundred seventy-two thousand, seven hundred thirty-four".