1531740234 has 16 divisors (see below), whose sum is σ = 3072739680. Its totient is φ = 509036880.

The previous prime is 1531740229. The next prime is 1531740247. The reversal of 1531740234 is 4320471351.

It is a happy 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, 383649 + ... + 387620.

It is an arithmetic number, because the mean of its divisors is an integer number (192046230).

Almost surely, 2^1531740234 is an apocalyptic number.

1531740234 is an abundant number, since it is smaller than the sum of its proper divisors (1540999446).

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

1531740234 is a wasteful number, since it uses less digits than its factorization.

1531740234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771605.

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

The square root of 1531740234 is about 39137.4530852482. The cubic root of 1531740234 is about 1152.7320635706.

The spelling of 1531740234 in words is "one billion, five hundred thirty-one million, seven hundred forty thousand, two hundred thirty-four".