42450804 has 120 divisors (see below), whose sum is σ = 124326048. Its totient is φ = 12519360.

The previous prime is 42450797. The next prime is 42450817. The reversal of 42450804 is 40805424.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 153114 + ... + 153390.

Almost surely, 2^42450804 is an apocalyptic number.

42450804 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

42450804 is the 3483-rd nonagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42450804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62163024).

42450804 is an abundant number, since it is smaller than the sum of its proper divisors (81875244).

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

42450804 is a wasteful number, since it uses less digits than its factorization.

42450804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 42450804 is about 6515.4281517027. The cubic root of 42450804 is about 348.8418973919.

The spelling of 42450804 in words is "forty-two million, four hundred fifty thousand, eight hundred four".