1423658140 has 48 divisors (see below), whose sum is σ = 3227273280. Its totient is φ = 525916160.

The previous prime is 1423658113. The next prime is 1423658179. The reversal of 1423658140 is 418563241.

It is a junction number, because it is equal to n+sod(n) for n = 1423658096 and 1423658105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40021 + ... + 66700.

It is an arithmetic number, because the mean of its divisors is an integer number (67234860).

Almost surely, 2^1423658140 is an apocalyptic number.

1423658140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1423658140 is an abundant number, since it is smaller than the sum of its proper divisors (1803615140).

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

1423658140 is a wasteful number, since it uses less digits than its factorization.

1423658140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106782 (or 106780 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 1423658140 is about 37731.3946203954. The cubic root of 1423658140 is about 1124.9552285063.

The spelling of 1423658140 in words is "one billion, four hundred twenty-three million, six hundred fifty-eight thousand, one hundred forty".