1523672540 has 48 divisors (see below), whose sum is σ = 3448841088. Its totient is φ = 562097664.

The previous prime is 1523672539. The next prime is 1523672551. The reversal of 1523672540 is 452763251.

It is a self number, because there is not a number n which added to its sum of digits gives 1523672540.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 454109 + ... + 457451.

It is an arithmetic number, because the mean of its divisors is an integer number (71850856).

Almost surely, 2^1523672540 is an apocalyptic number.

1523672540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1523672540 is an abundant number, since it is smaller than the sum of its proper divisors (1925168548).

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

1523672540 is a wasteful number, since it uses less digits than its factorization.

1523672540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5118 (or 5116 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 1523672540 is about 39034.2482955673. The cubic root of 1523672540 is about 1150.7046821574.

The spelling of 1523672540 in words is "one billion, five hundred twenty-three million, six hundred seventy-two thousand, five hundred forty".