422619420 has 24 divisors (see below), whose sum is σ = 1183334544. Its totient is φ = 112698496.

The previous prime is 422619409. The next prime is 422619469. The reversal of 422619420 is 24916224.

It is a super-2 number, since 2×422619420² = 357214348322272800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3521769 + ... + 3521888.

It is an arithmetic number, because the mean of its divisors is an integer number (49305606).

Almost surely, 2^422619420 is an apocalyptic number.

It is an amenable number.

422619420 is an abundant number, since it is smaller than the sum of its proper divisors (760715124).

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

422619420 is a wasteful number, since it uses less digits than its factorization.

422619420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7043669 (or 7043667 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 422619420 is about 20557.7095027632. The cubic root of 422619420 is about 750.4408785618.

It can be divided in two parts, 42261 and 9420, that added together give a triangular number (51681 = T₃₂₁).

The spelling of 422619420 in words is "four hundred twenty-two million, six hundred nineteen thousand, four hundred twenty".