402011043 has 24 divisors (see below), whose sum is σ = 650642688. Its totient is φ = 219730896.

The previous prime is 402011041. The next prime is 402011047. The reversal of 402011043 is 340110204.

It is not a de Polignac number, because 402011043 - 2¹ = 402011041 is a prime.

It is a super-2 number, since 2×402011043² = 323225757387895698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (402011041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56071 + ... + 62832.

It is an arithmetic number, because the mean of its divisors is an integer number (27110112).

Almost surely, 2^402011043 is an apocalyptic number.

402011043 is a deficient number, since it is larger than the sum of its proper divisors (248631645).

402011043 is a wasteful number, since it uses less digits than its factorization.

402011043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118943 (or 118936 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 402011043 is about 20050.2130412622. The cubic root of 402011043 is about 738.0390271001.

Adding to 402011043 its reverse (340110204), we get a palindrome (742121247).

The spelling of 402011043 in words is "four hundred two million, eleven thousand, forty-three".