1453704520 has 16 divisors (see below), whose sum is σ = 3270835260. Its totient is φ = 581481792.

The previous prime is 1453704503. The next prime is 1453704523. The reversal of 1453704520 is 254073541.

It can be written as a sum of positive squares in 2 ways, for example, as 1404900324 + 48804196 = 37482^2 + 6986^2 .

It is a super-2 number, since 2×1453704520² = 4226513662936860800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1453704523) 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, 18171267 + ... + 18171346.

Almost surely, 2^1453704520 is an apocalyptic number.

1453704520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1453704520 is an abundant number, since it is smaller than the sum of its proper divisors (1817130740).

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

1453704520 is a wasteful number, since it uses less digits than its factorization.

1453704520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36342624 (or 36342620 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 1453704520 is about 38127.4772309944. The cubic root of 1453704520 is about 1132.8142763457.

The spelling of 1453704520 in words is "one billion, four hundred fifty-three million, seven hundred four thousand, five hundred twenty".