1522664494 has 8 divisors (see below), whose sum is σ = 2459688840. Its totient is φ = 702768216.

The previous prime is 1522664489. The next prime is 1522664497. The reversal of 1522664494 is 4944662251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1522664494² = 4637014322576552072, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1522664494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1522664497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29281984 + ... + 29282035.

It is an arithmetic number, because the mean of its divisors is an integer number (307461105).

Almost surely, 2^1522664494 is an apocalyptic number.

1522664494 is a deficient number, since it is larger than the sum of its proper divisors (937024346).

1522664494 is a wasteful number, since it uses less digits than its factorization.

1522664494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58564034.

The product of its digits is 414720, while the sum is 43.

The square root of 1522664494 is about 39021.3338316363. Note that the first 3 decimals coincide. The cubic root of 1522664494 is about 1150.4508614004.

The spelling of 1522664494 in words is "one billion, five hundred twenty-two million, six hundred sixty-four thousand, four hundred ninety-four".