40428290101 has 4 divisors (see below), whose sum is σ = 41822369100. Its totient is φ = 39034211104.

The previous prime is 40428290069. The next prime is 40428290143. The reversal of 40428290101 is 10109282404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28883002500 + 11545287601 = 169950^2 + 107449^2 .

It is a cyclic number.

It is not a de Polignac number, because 40428290101 - 2⁵ = 40428290069 is a prime.

It is a super-2 number, since 2×40428290101² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40428290401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 697039456 + ... + 697039513.

It is an arithmetic number, because the mean of its divisors is an integer number (10455592275).

Almost surely, 2^40428290101 is an apocalyptic number.

It is an amenable number.

40428290101 is a deficient number, since it is larger than the sum of its proper divisors (1394078999).

40428290101 is a wasteful number, since it uses less digits than its factorization.

40428290101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394078998.

The product of its (nonzero) digits is 4608, while the sum is 31.

The spelling of 40428290101 in words is "forty billion, four hundred twenty-eight million, two hundred ninety thousand, one hundred one".