1520453670 has 32 divisors (see below), whose sum is σ = 3708914400. Its totient is φ = 398807040.

The previous prime is 1520453611. The next prime is 1520453687. The reversal of 1520453670 is 763540251.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413595 + ... + 417254.

It is an arithmetic number, because the mean of its divisors is an integer number (115903575).

Almost surely, 2^1520453670 is an apocalyptic number.

1520453670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1520453670 is an abundant number, since it is smaller than the sum of its proper divisors (2188460730).

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

1520453670 is a wasteful number, since it uses less digits than its factorization.

1520453670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830920.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 1520453670 is about 38992.9951401531. The cubic root of 1520453670 is about 1149.8937948549.

The spelling of 1520453670 in words is "one billion, five hundred twenty million, four hundred fifty-three thousand, six hundred seventy".