8210401542 has 80 divisors (see below), whose sum is σ = 21313815072. Its totient is φ = 2313671040.

The previous prime is 8210401541. The next prime is 8210401547. The reversal of 8210401542 is 2451040128.

8210401542 is a `hidden beast` number, since 8 + 210 + 401 + 5 + 42 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8210401541) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 33192 + ... + 132372.

Almost surely, 2^8210401542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8210401542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10656907536).

8210401542 is an abundant number, since it is smaller than the sum of its proper divisors (13103413530).

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

8210401542 is a wasteful number, since it uses less digits than its factorization.

8210401542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99275 (or 99266 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 8210401542 is about 90611.2660876119. The cubic root of 8210401542 is about 2017.3819579642.

The spelling of 8210401542 in words is "eight billion, two hundred ten million, four hundred one thousand, five hundred forty-two".