766402419 has 16 divisors (see below), whose sum is σ = 1042390944. Its totient is φ = 500697600.

The previous prime is 766402397. The next prime is 766402451. The reversal of 766402419 is 914204667.

It is a happy number.

It is not a de Polignac number, because 766402419 - 2⁵ = 766402387 is a prime.

It is a super-4 number, since 4×766402419⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (766402319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159979 + ... + 164699.

It is an arithmetic number, because the mean of its divisors is an integer number (65149434).

Almost surely, 2^766402419 is an apocalyptic number.

766402419 is a deficient number, since it is larger than the sum of its proper divisors (275988525).

766402419 is a wasteful number, since it uses less digits than its factorization.

766402419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5798.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 766402419 is about 27683.9740463684. The cubic root of 766402419 is about 915.1359623574.

The spelling of 766402419 in words is "seven hundred sixty-six million, four hundred two thousand, four hundred nineteen".