1331550436 has 12 divisors (see below), whose sum is σ = 2330787312. Its totient is φ = 665611208.

The previous prime is 1331550421. The next prime is 1331550461. The reversal of 1331550436 is 6340551331.

It is a super-2 number, since 2×1331550436² = 3546053127223580192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1331550398 and 1331550407.

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, 21730 + ... + 55993.

It is an arithmetic number, because the mean of its divisors is an integer number (194232276).

Almost surely, 2^1331550436 is an apocalyptic number.

It is an amenable number.

1331550436 is a deficient number, since it is larger than the sum of its proper divisors (999236876).

1331550436 is a wasteful number, since it uses less digits than its factorization.

1331550436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82010 (or 82008 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 1331550436 is about 36490.4156731600. The cubic root of 1331550436 is about 1100.1516143636.

The spelling of 1331550436 in words is "one billion, three hundred thirty-one million, five hundred fifty thousand, four hundred thirty-six".