1478994264 has 192 divisors, whose sum is σ = 4481568000. Its totient is φ = 436896000.

The previous prime is 1478994263. The next prime is 1478994281. The reversal of 1478994264 is 4624998741.

It is a self number, because there is not a number n which added to its sum of digits gives 1478994264.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1478994263) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9794589 + ... + 9794739.

It is an arithmetic number, because the mean of its divisors is an integer number (23341500).

Almost surely, 2^1478994264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1478994264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2240784000).

1478994264 is an abundant number, since it is smaller than the sum of its proper divisors (3002573736).

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

1478994264 is a wasteful number, since it uses less digits than its factorization.

1478994264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 399 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 1478994264 is about 38457.6944706778. The cubic root of 1478994264 is about 1139.3456447887.

The spelling of 1478994264 in words is "one billion, four hundred seventy-eight million, nine hundred ninety-four thousand, two hundred sixty-four".