7402946399 has 4 divisors (see below), whose sum is σ = 7476243000. Its totient is φ = 7329649800.

The previous prime is 7402946389. The next prime is 7402946401. The reversal of 7402946399 is 9936492047.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7402946399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7402946399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7402946339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36648149 + ... + 36648350.

It is an arithmetic number, because the mean of its divisors is an integer number (1869060750).

Almost surely, 2^7402946399 is an apocalyptic number.

7402946399 is a deficient number, since it is larger than the sum of its proper divisors (73296601).

7402946399 is a wasteful number, since it uses less digits than its factorization.

7402946399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73296600.

The product of its (nonzero) digits is 2939328, while the sum is 53.

The square root of 7402946399 is about 86040.3765624024. The cubic root of 7402946399 is about 1948.9537581948.

The spelling of 7402946399 in words is "seven billion, four hundred two million, nine hundred forty-six thousand, three hundred ninety-nine".