1101378040 has 32 divisors (see below), whose sum is σ = 2832115680. Its totient is φ = 377615232.

The previous prime is 1101378029. The next prime is 1101378043. The reversal of 1101378040 is 408731011.

It is a junction number, because it is equal to n+sod(n) for n = 1101377996 and 1101378014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101378043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1966467 + ... + 1967026.

It is an arithmetic number, because the mean of its divisors is an integer number (88503615).

Almost surely, 2^1101378040 is an apocalyptic number.

1101378040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101378040 is an abundant number, since it is smaller than the sum of its proper divisors (1730737640).

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

1101378040 is a wasteful number, since it uses less digits than its factorization.

1101378040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3933511 (or 3933507 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1101378040 is about 33187.0161358324. The cubic root of 1101378040 is about 1032.7110032366.

The spelling of 1101378040 in words is "one billion, one hundred one million, three hundred seventy-eight thousand, forty".