781422342 has 16 divisors (see below), whose sum is σ = 1616736240. Its totient is φ = 251492192.

The previous prime is 781422337. The next prime is 781422347. The reversal of 781422342 is 243224187.

It is a happy number.

781422342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (781422337) and next prime (781422347).

It is a super-2 number, since 2×781422342² = 1221241753153529928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (781422347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2245293 + ... + 2245640.

It is an arithmetic number, because the mean of its divisors is an integer number (101046015).

Almost surely, 2^781422342 is an apocalyptic number.

781422342 is an abundant number, since it is smaller than the sum of its proper divisors (835313898).

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

781422342 is a wasteful number, since it uses less digits than its factorization.

781422342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4490967.

The product of its digits is 21504, while the sum is 33.

The square root of 781422342 is about 27953.9324961623. The cubic root of 781422342 is about 921.0755937721.

The spelling of 781422342 in words is "seven hundred eighty-one million, four hundred twenty-two thousand, three hundred forty-two".