1264020626 has 8 divisors (see below), whose sum is σ = 2068397424. Its totient is φ = 574554820.

The previous prime is 1264020613. The next prime is 1264020649. The reversal of 1264020626 is 6260204621.

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

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, 28727720 + ... + 28727763.

It is an arithmetic number, because the mean of its divisors is an integer number (258549678).

Almost surely, 2^1264020626 is an apocalyptic number.

1264020626 is a deficient number, since it is larger than the sum of its proper divisors (804376798).

1264020626 is a wasteful number, since it uses less digits than its factorization.

1264020626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57455496.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 1264020626 is about 35553.0677438671. The cubic root of 1264020626 is about 1081.2299162697.

The spelling of 1264020626 in words is "one billion, two hundred sixty-four million, twenty thousand, six hundred twenty-six".