1520232450 has 48 divisors (see below), whose sum is σ = 4112924256. Its totient is φ = 368540800.

The previous prime is 1520232433. The next prime is 1520232451. The reversal of 1520232450 is 542320251.

It is a super-2 number, since 2×1520232450² = 4622213404066005000, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1520232450.

It is not an unprimeable number, because it can be changed into a prime (1520232451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 459027 + ... + 462326.

It is an arithmetic number, because the mean of its divisors is an integer number (85685922).

Almost surely, 2^1520232450 is an apocalyptic number.

1520232450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1520232450 is an abundant number, since it is smaller than the sum of its proper divisors (2592691806).

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

1520232450 is a wasteful number, since it uses less digits than its factorization.

1520232450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921379 (or 921374 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 1520232450 is about 38990.1583736204. The cubic root of 1520232450 is about 1149.8380238158.

The spelling of 1520232450 in words is "one billion, five hundred twenty million, two hundred thirty-two thousand, four hundred fifty".