1264677940 has 48 divisors (see below), whose sum is σ = 2838411072. Its totient is φ = 471650816.

The previous prime is 1264677937. The next prime is 1264677959. The reversal of 1264677940 is 497764621.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18999 + ... + 53761.

It is an arithmetic number, because the mean of its divisors is an integer number (59133564).

Almost surely, 2^1264677940 is an apocalyptic number.

1264677940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1264677940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1419205536).

1264677940 is an abundant number, since it is smaller than the sum of its proper divisors (1573733132).

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

1264677940 is a wasteful number, since it uses less digits than its factorization.

1264677940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34896 (or 34894 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 1264677940 is about 35562.3106673343. The cubic root of 1264677940 is about 1081.4173036135.

The spelling of 1264677940 in words is "one billion, two hundred sixty-four million, six hundred seventy-seven thousand, nine hundred forty".