742450806 has 64 divisors (see below), whose sum is σ = 1749288960. Its totient is φ = 233007840.

The previous prime is 742450801. The next prime is 742450823. The reversal of 742450806 is 608054247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742450801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55945 + ... + 67931.

It is an arithmetic number, because the mean of its divisors is an integer number (27332640).

Almost surely, 2^742450806 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 742450806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (874644480).

742450806 is an abundant number, since it is smaller than the sum of its proper divisors (1006838154).

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

742450806 is a wasteful number, since it uses less digits than its factorization.

742450806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12066 (or 12060 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 742450806 is about 27247.9504917342. The cubic root of 742450806 is about 905.5016117704.

The spelling of 742450806 in words is "seven hundred forty-two million, four hundred fifty thousand, eight hundred six".