1505797442 has 18 divisors (see below), whose sum is σ = 2363150937. Its totient is φ = 719560336.

The previous prime is 1505797429. The next prime is 1505797453. The reversal of 1505797442 is 2447975051.

It can be written as a sum of positive squares in 2 ways, for example, as 1505517601 + 279841 = 38801^2 + 529^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=27439.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1505797393 and 1505797402.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1261598 + ... + 1262790.

Almost surely, 2^1505797442 is an apocalyptic number.

1505797442 is a deficient number, since it is larger than the sum of its proper divisors (857353495).

1505797442 is an frugal number, since it uses more digits than its factorization.

1505797442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2434 (or 1218 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 44.

The square root of 1505797442 is about 38804.6059379554. The cubic root of 1505797442 is about 1146.1871054223.

Multiplying 1505797442 by its product of nonzero digits (352800), we get a square (531245337537600 = 23048760²).

The spelling of 1505797442 in words is "one billion, five hundred five million, seven hundred ninety-seven thousand, four hundred forty-two".