1623420142 has 8 divisors (see below), whose sum is σ = 2435373432. Its totient is φ = 811629000.

The previous prime is 1623420101. The next prime is 1623420143. The reversal of 1623420142 is 2410243261.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1623420143) 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, 11284 + ... + 58087.

It is an arithmetic number, because the mean of its divisors is an integer number (304421679).

Almost surely, 2^1623420142 is an apocalyptic number.

1623420142 is a deficient number, since it is larger than the sum of its proper divisors (811953290).

1623420142 is a wasteful number, since it uses less digits than its factorization.

1623420142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81074.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 1623420142 is about 40291.6882495633. The cubic root of 1623420142 is about 1175.2862177652.

The spelling of 1623420142 in words is "one billion, six hundred twenty-three million, four hundred twenty thousand, one hundred forty-two".