790002640 has 80 divisors (see below), whose sum is σ = 2102686848. Its totient is φ = 270402048.

The previous prime is 790002623. The next prime is 790002749. The reversal of 790002640 is 46200097.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 790002599 and 790002608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 650674 + ... + 651886.

Almost surely, 2^790002640 is an apocalyptic number.

790002640 is a gapful number since it is divisible by the number (70) 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 790002640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1051343424).

790002640 is an abundant number, since it is smaller than the sum of its proper divisors (1312684208).

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

790002640 is a wasteful number, since it uses less digits than its factorization.

790002640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396 (or 2390 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 790002640 is about 28106.9856085636. The cubic root of 790002640 is about 924.4345762853.

The spelling of 790002640 in words is "seven hundred ninety million, two thousand, six hundred forty".