1026140401 has 16 divisors (see below), whose sum is σ = 1220808960. Its totient is φ = 850187520.

The previous prime is 1026140389. The next prime is 1026140411. The reversal of 1026140401 is 1040416201.

It is not a de Polignac number, because 1026140401 - 2⁵ = 1026140369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1026140411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34120 + ... + 56713.

It is an arithmetic number, because the mean of its divisors is an integer number (76300560).

Almost surely, 2^1026140401 is an apocalyptic number.

1026140401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1026140401 is a deficient number, since it is larger than the sum of its proper divisors (194668559).

1026140401 is a wasteful number, since it uses less digits than its factorization.

1026140401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90936.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1026140401 is about 32033.4263075307. The cubic root of 1026140401 is about 1008.6386262482.

Adding to 1026140401 its reverse (1040416201), we get a palindrome (2066556602).

The spelling of 1026140401 in words is "one billion, twenty-six million, one hundred forty thousand, four hundred one".