1015722426 has 16 divisors (see below), whose sum is σ = 2150941824. Its totient is φ = 318657984.

The previous prime is 1015722391. The next prime is 1015722437. The reversal of 1015722426 is 6242275101.

It is a junction number, because it is equal to n+sod(n) for n = 1015722393 and 1015722402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4978930 + ... + 4979133.

It is an arithmetic number, because the mean of its divisors is an integer number (134433864).

Almost surely, 2^1015722426 is an apocalyptic number.

1015722426 is an abundant number, since it is smaller than the sum of its proper divisors (1135219398).

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

1015722426 is a wasteful number, since it uses less digits than its factorization.

1015722426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9958085.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 1015722426 is about 31870.4004681460. The cubic root of 1015722426 is about 1005.2135800126.

Adding to 1015722426 its reverse (6242275101), we get a palindrome (7257997527).

The spelling of 1015722426 in words is "one billion, fifteen million, seven hundred twenty-two thousand, four hundred twenty-six".