1540231734 has 16 divisors (see below), whose sum is σ = 3084756480. Its totient is φ = 512695080.

The previous prime is 1540231733. The next prime is 1540231741. The reversal of 1540231734 is 4371320451.

It is a happy number.

1540231734 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540231733) 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, 174202 + ... + 182829.

It is an arithmetic number, because the mean of its divisors is an integer number (192797280).

Almost surely, 2^1540231734 is an apocalyptic number.

1540231734 is an abundant number, since it is smaller than the sum of its proper divisors (1544524746).

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

1540231734 is a wasteful number, since it uses less digits than its factorization.

1540231734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357755.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 1540231734 is about 39245.7861941891. The cubic root of 1540231734 is about 1154.8582708722.

The spelling of 1540231734 in words is "one billion, five hundred forty million, two hundred thirty-one thousand, seven hundred thirty-four".