1525430442 has 8 divisors (see below), whose sum is σ = 3050860896. Its totient is φ = 508476812.

The previous prime is 1525430407. The next prime is 1525430507. The reversal of 1525430442 is 2440345251.

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

1525430442 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127119198 + ... + 127119209.

It is an arithmetic number, because the mean of its divisors is an integer number (381357612).

Almost surely, 2^1525430442 is an apocalyptic number.

1525430442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1525430442 is a wasteful number, since it uses less digits than its factorization.

1525430442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254238412.

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 1525430442 is about 39056.7592357584. The cubic root of 1525430442 is about 1151.1470450619.

Adding to 1525430442 its reverse (2440345251), we get a palindrome (3965775693).

The spelling of 1525430442 in words is "one billion, five hundred twenty-five million, four hundred thirty thousand, four hundred forty-two".